Finding the Third Proportional to 62,559 and 71,581.50

Step by Step Solution

1. Step 1: Write the proportion equation
   62,559 : 71,581.50 = 71,581.50 : x
2. Step 2: Convert to fraction form
   62,559/71,581.50 = 71,581.50/x
3. Step 3: Cross multiply
   62,559x = 71,581.50 × 71,581.50
4. Step 4: Simplify right side
   62,559x = 5,123,911,142.25
5. Step 5: Solve for x
   x = 5,123,911,142.25/62,559
6. Step 6: Final answer
   x = 81,905.26