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:
| party | Manhattan | The Bronx | Brooklyn | Queens | Richmond [Staten Is.] | Total |
| --- | --- | --- | --- | --- | --- | --- |
| Democratic | 308,944 | 181,639 | 358,945 | 176,070 | 30,517 | 1056115.0 |
| Democratic | 60.8% | 52.0% | 51.0% | 47.9% | 54.3% | 1056115.0 |
| Republican | 116,729 | 48,366 | 157,152 | 105,068 | 16,586 | 443901.0 |
| Republican | 23.0% | 13.9% | 22.3% | 28.6% | 29.5% | 443901.0 |
| Socialist | 40,011 | 68,980 | 113,622 | 24,981 | 2,293 | 249887.0 |
| Socialist | 7.9% | 19.8% | 16.2% | 6.8% | 4.1% | 249887.0 |
| Independent (write-in) | 42,299 | 50,212 | 73,431 | 61,648 | 6,782 | 234372.0 |
| Independent (write-in) | 8.3% | 14.4% | 10.4% | 16.8% | 12.1% | 234372.0 |
| T O T A L | 507,983 | 349,197 | 703,150 | 367,767 | 56,178 | 1984275.0 |
Question:
How many voters were in Manhattan when 181,639 people voted in the Bronx?
Answer:
30517.0