To calculate the population of the country, you can use the formula:
\[ \text{Population} = \text{Population Density} \times \text{Area} \]
Given that the population density is 120 people per square mile and the area is 76,254.89 square miles, the calculation would be:
\[ \text{Population} = 120 , \text{people/sq mile} \times 76,254.89 , \text{sq miles} \]
Calculating this gives:
\[ \text{Population} = 120 \times 76,254.89 = 9,150,586.68 \]
Since population is usually rounded to the nearest whole number, the population can be approximated as 9,150,586 people.
Therefore, the correct answer is 9,150,586 people.