Finding the Third Proportional to 57,874.50 and 87,428.25

Step by Step Solution

1. Step 1: Write the proportion equation
   57,874.50 : 87,428.25 = 87,428.25 : x
2. Step 2: Convert to fraction form
   57,874.50/87,428.25 = 87,428.25/x
3. Step 3: Cross multiply
   57,874.50x = 87,428.25 × 87,428.25
4. Step 4: Simplify right side
   57,874.50x = 7,643,698,898.06
5. Step 5: Solve for x
   x = 7,643,698,898.06/57,874.50
6. Step 6: Final answer
   x = 132,073.69