Finding the Third Proportional to 103,929 and 131,836.50

Step by Step Solution

1. Step 1: Write the proportion equation
   103,929 : 131,836.50 = 131,836.50 : x
2. Step 2: Convert to fraction form
   103,929/131,836.50 = 131,836.50/x
3. Step 3: Cross multiply
   103,929x = 131,836.50 × 131,836.50
4. Step 4: Simplify right side
   103,929x = 17,380,862,732.25
5. Step 5: Solve for x
   x = 17,380,862,732.25/103,929
6. Step 6: Final answer
   x = 167,237.85