We have to express the number 62,525,703,987,421 km^3 in scientific notation, with 2 digits.
We can write this as:
[tex]62,525,703,987,421=6.2525703987421\cdot10,000,000,000,000\approx6.25\cdot10^{13}[/tex]The number with 2 decimals in scientific notation is 6.25 * 10^13.