\begin{array}{l} x = l o g_{10} (7323118) \\ y = l o g_{10} (919222) \\ x + y = l o g_{10} (7323118 \cdot 919222) \\ 7323118 \cdot 919222 = 10^{x + y} \end{array}

${\begin {array} {l} x = log_{10}(7323118) \\ y = log_{10}(919222) \\ x + y = log_{10}(7323118 \cdot 919222) \\ 7323118 \cdot 919222 = 10^{x+y} \end {array}}$