Finding the Third Proportional to 52,862 and 72,487

Step by Step Solution

1. Step 1: Write the proportion equation
   52,862 : 72,487 = 72,487 : x
2. Step 2: Convert to fraction form
   52,862/72,487 = 72,487/x
3. Step 3: Cross multiply
   52,862x = 72,487 × 72,487
4. Step 4: Simplify right side
   52,862x = 5,254,365,169
5. Step 5: Solve for x
   x = 5,254,365,169/52,862
6. Step 6: Final answer
   x = 99,397.77