Finding the Third Proportional to 85,931.50 and 126,402.50

Step by Step Solution

1. Step 1: Write the proportion equation
   85,931.50 : 126,402.50 = 126,402.50 : x
2. Step 2: Convert to fraction form
   85,931.50/126,402.50 = 126,402.50/x
3. Step 3: Cross multiply
   85,931.50x = 126,402.50 × 126,402.50
4. Step 4: Simplify right side
   85,931.50x = 15,977,592,006.25
5. Step 5: Solve for x
   x = 15,977,592,006.25/85,931.50
6. Step 6: Final answer
   x = 185,934.05