You have just sold your house for in cash. Your mortgage was originally a​ 30-year mortgage with monthly payments and an initial balance of . The mortgage is currently exactly​ 18½ years​ old, and you have just made a payment. If the interest rate on the mortgage is ​(APR), how much cash will you have from the sale once you pay off the​ mortgage? ​(Note: Be careful not to round any intermediate steps less than six decimal​ places.)