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:
| Body | Equatorial diameter | Polar diameter | Equatorial bulge | Flattening ratio |
| --- | --- | --- | --- | --- |
| Earth | 12,756.28km | 12,713.56km | 42.72km | 1:298.2575 |
| Mars | 6,805km | 6,754.8km | 50.2km | 1:135.56 |
| Ceres | 975km | 909km | 66km | 1:14.77 |
| Jupiter | 143,884km | 133,709km | 10,175km | 1:14.14 |
| Saturn | 120,536km | 108,728km | 11,808km | 1:10.21 |
| Uranus | 51,118km | 49,946km | 1,172km | 1:43.62 |
| Neptune | 49,528km | 48,682km | 846km | 1:58.54 |
Question:
What is the Equatorial bulge of the Body: Earth?
Answer:
42.72km