Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| No. in Series | No. in Season | Title | Directed by | Written by | Original air date | U.S. viewers (millions) |
| --- | --- | --- | --- | --- | --- | --- |
| 45.0 | 1.0 | "The Underneath" | John Gray | John Gray | September28,2007 | 8.72 |
| 46.0 | 2.0 | "Don't Try This at Home" | Ian Sander | Teddy Tenenbaum & Laurie McCarthy | October5,2007 | 8.91 |
| 47.0 | 3.0 | "Haunted Hero" | Eric Laneuville | Breen Frazier & Karl Schaefer | October12,2007 | 8.90 |
| 48.0 | 4.0 | "No Safe Place" | Peter O'Fallon | Jeannine Renshaw | October19,2007 | 8.95 |
| 49.0 | 5.0 | "Weight of What Was" | Gloria Muzio | P.K. Simonds | October26,2007 | 9.99 |
| 50.0 | 6.0 | "Double Exposure" | Eric Laneuville | Laurie McCarthy | November2,2007 | 9.18 |
| 51.0 | 7.0 | "Unhappy Medium" | Frederick E.O. Toye | Breen Frazier | November9,2007 | 9.85 |
| 52.0 | 8.0 | "Bad Blood" | Peter Werner | Teddy Tenenbaum | November16,2007 | 9.56 |
| 53.0 | 9.0 | "All Ghosts Lead to Grandview" | Frederick E.O. Toye | P.K. Simonds & Laurie McCarthy | November23,2007 | 9.98 |
| 54.0 | 10.0 | "Holiday Spirit" | Steven Robman | Jeannine Renshaw | December14,2007 | 9.80 |
| 55.0 | 11.0 | "Slam (a.k.a. Slambook)" | Mark Rosman | Karl Schaefer & Daniel Sinclair | January11,2008 | 9.86 |
| 56.0 | 12.0 | "First Do No Harm" | Ian Sander | John Gray | January18,2008 | 9.91 |
| 57.0 | 13.0 | "Home But Not Alone" | Eric Laneuville | P.K. Simonds & Laurie McCarthy | April4,2008 | 9.06 |
| 58.0 | 14.0 | "The Grave Sitter" | Frederick E.O. Toye | John Gray | April11,2008 | 8.55 |
| 59.0 | 15.0 | "Horror Show" | Ian Sander | Jeannine Renshaw | April25,2008 | 8.98 |
| 60.0 | 16.0 | "Deadbeat Dads" | Gloria Muzio | Mark B. Perry | May2,2008 | 9.21 |
| 61.0 | 17.0 | " Stranglehold "(Part 1) | Eric Laneuville | Laurie McCarthy & P.K. Simonds | May9,2008 | 8.78 |
Question:
What's the highest season number with a series number of 47?
Answer:
3.0