You have just sold your house for $$950,000$ in cash. Your mortgage was originally a $25-$year mortgage with monthly payments and an initial balance of $$700,000.$ The mortgage is currently exactly $18\mathrm{.}5$ years old, and you have just made a payment. If the interest rate on the mortgage is $6\mathrm{.}25\%($APR with semi$-$annual compounding$),$ how much cash will you have from the sale once you pay off the mortgage? $($Note: Be careful not to round any intermediate steps.$)$