Finding the Third Proportional to 85,454 and 132,658.50

Step by Step Solution

1. Step 1: Write the proportion equation
   85,454 : 132,658.50 = 132,658.50 : x
2. Step 2: Convert to fraction form
   85,454/132,658.50 = 132,658.50/x
3. Step 3: Cross multiply
   85,454x = 132,658.50 × 132,658.50
4. Step 4: Simplify right side
   85,454x = 17,598,277,622.25
5. Step 5: Solve for x
   x = 17,598,277,622.25/85,454
6. Step 6: Final answer
   x = 205,938.61