Final answer:
To estimate the size of the crowd, divide the total area by the area occupied by each person. The estimated size of the crowd is approximately 19,094 people.
Step-by-step explanation:
To estimate the size of the crowd, we can calculate the total area of the space and divide it by the area occupied by each person. The total area of the crowd is 9 feet (depth) * 2 (sides) * 2,652 feet (length) = 47,736 square feet. Since each person occupies 2.5 square feet, we can divide the total area by 2.5 to get the estimated number of people. 47,736 square feet / 2.5 square feet/person = 19,094.4 people. Rounding to the nearest whole number, the estimated size of the crowd is approximately 19,094 people.