Finding the Third Proportional to 52,855 and 72,477.50

Step by Step Solution

1. Step 1: Write the proportion equation
   52,855 : 72,477.50 = 72,477.50 : x
2. Step 2: Convert to fraction form
   52,855/72,477.50 = 72,477.50/x
3. Step 3: Cross multiply
   52,855x = 72,477.50 × 72,477.50
4. Step 4: Simplify right side
   52,855x = 5,252,988,006.25
5. Step 5: Solve for x
   x = 5,252,988,006.25/52,855
6. Step 6: Final answer
   x = 99,384.88