On a TV game show, there are $8$ briefcases remaining, containing $$1000000,$$$250000,$$$10000,$$$500,$$$100,$$$25,$$$2$ and $$1.$ You will win the contents of one briefcase. To be a fair game, how much should the game show host offer you to quit the game immediately?

a$)$ $$300$

b$)$ $$1260628$

c$)$ $$500000$

d$)$ $$157578\mathrm{.}50$