Graham purchased a business by agreeing to make three payments of $$$$12000\mathrm{.}00$ each in $2$months$,9$months$,$ and $13$ months. Because of cash flow$$ difficulties, he renegotiated the payment schedule so that he would pay $$$$17200\mathrm{.}00$ in $5$months$,$$$10000\mathrm{.}00$ in $15$months$,$ and a third payment of $$$$10000\mathrm{.}00.$ In how many years should he make the third payment if interest is $8\%$ compounded monthly$?$ State your answer in years and months$($from $0$ to $11$ months$).$