Loralyn borrowed $12,500 from her grandmother at an interest rate of 9% compounded semiannually. The loan is to be repaid by three payments. The first payment, $2000, is due three years after the date of the loan. The second and third payments are due seven and eight years, respectively, after the initial loan. How much will the second and third payments be if the loan agreement requires that those two payments be equal in amount?