Answer:
$121,012.53
Explanation:
principal = $300,000
APR = 8%
n = 30 years
annual payment = $25,580
assuming that interest is compounded annually, then the annual payment should be = $300,000 / 11.25778 (PV annuity factor, 8%, 30 periods) = $26,648.24
I prepared an amortization schedule to calculate the balloon payment: $121,012.53