Finding the Third Proportional to 81,391.50 and 126,013.50

Step by Step Solution

1. Step 1: Write the proportion equation
   81,391.50 : 126,013.50 = 126,013.50 : x
2. Step 2: Convert to fraction form
   81,391.50/126,013.50 = 126,013.50/x
3. Step 3: Cross multiply
   81,391.50x = 126,013.50 × 126,013.50
4. Step 4: Simplify right side
   81,391.50x = 15,879,402,182.25
5. Step 5: Solve for x
   x = 15,879,402,182.25/81,391.50
6. Step 6: Final answer
   x = 195,099.02