Answer:
Australia is 830000 times larger, rounded to 2 sig figs.
Explanation:
The term for Cyprus of "9.3 x 10 cubed km squared" makes no sense. Lets assume the intended number is 9.3 km^2,
Australia = 7.7 x 10^6 km^2
Cyprus = 9.3 km^2
The area ratio of Australia to Cyprus is (7.7 x 10^6 km^2)/(9.3 km^2) = 8.3 x 10^5. Australia is 830000 times larger, rounded to 2 sig figs.