Finding the Third Proportional to 69,385.50 and 109,761.75

Step by Step Solution

1. Step 1: Write the proportion equation
   69,385.50 : 109,761.75 = 109,761.75 : x
2. Step 2: Convert to fraction form
   69,385.50/109,761.75 = 109,761.75/x
3. Step 3: Cross multiply
   69,385.50x = 109,761.75 × 109,761.75
4. Step 4: Simplify right side
   69,385.50x = 12,047,641,763.06
5. Step 5: Solve for x
   x = 12,047,641,763.06/69,385.50
6. Step 6: Final answer
   x = 173,633.42