Finding the Third Proportional to 81,632.25 and 109,839.38

Step by Step Solution

1. Step 1: Write the proportion equation
   81,632.25 : 109,839.38 = 109,839.38 : x
2. Step 2: Convert to fraction form
   81,632.25/109,839.38 = 109,839.38/x
3. Step 3: Cross multiply
   81,632.25x = 109,839.38 × 109,839.38
4. Step 4: Simplify right side
   81,632.25x = 12,064,688,300.39
5. Step 5: Solve for x
   x = 12,064,688,300.39/81,632.25
6. Step 6: Final answer
   x = 147,793.16