Finding the Third Proportional to 57,872.25 and 89,077.50

Step by Step Solution

1. Step 1: Write the proportion equation
   57,872.25 : 89,077.50 = 89,077.50 : x
2. Step 2: Convert to fraction form
   57,872.25/89,077.50 = 89,077.50/x
3. Step 3: Cross multiply
   57,872.25x = 89,077.50 × 89,077.50
4. Step 4: Simplify right side
   57,872.25x = 7,934,801,006.25
5. Step 5: Solve for x
   x = 7,934,801,006.25/57,872.25
6. Step 6: Final answer
   x = 137,108.91