really? ... does $19290 interest on a 3 year investment of $25000 at 10% make sense?

if so, let me know where that institution is ... I'll deposit all I have ASAP.

general equation for compounded interest is

where A = account balance after t years paid at an APR of r, compounded n times a year.

after 3 years ...

add 40000 at the end of year 3 ...

at the end of 6 years