The mortgage loan for a family's house purchase is 654.38 million yuan, with an annual interest rate of 5% and a loan term of 15. Use the monthly average capital to repay and calculate the loan balance at the end of the fifth year. Calculation formula:

100000-(10000/180 * 60) = 66666.67 yuan.

A: The loan is 6,543,800 yuan with a term of 654.38+ 05. The loan is repaid by the average capital method, and the loan balance at the end of the fifth year is 66,666.67 yuan.

Note: This question has nothing to do with the loan interest rate.