$7\mathrm{.}9.$ Companies $x$ and $Y$ have been offered the following rates per annum on a $$5$ million

$10-$year investment:

Company $x$ requires a fixed$-$rate investment; company $Y$ requires a floating$-$rate invest$-$

ment. Design a swap that will net a bank, acting as intermediary, $0\mathrm{.}2\%$ per annum and

will appear equally attractive to $x$ and $Y.$