Finding the Third Proportional to 85,107 and 134,700.50

Step by Step Solution

1. Step 1: Write the proportion equation
   85,107 : 134,700.50 = 134,700.50 : x
2. Step 2: Convert to fraction form
   85,107/134,700.50 = 134,700.50/x
3. Step 3: Cross multiply
   85,107x = 134,700.50 × 134,700.50
4. Step 4: Simplify right side
   85,107x = 18,144,224,700.25
5. Step 5: Solve for x
   x = 18,144,224,700.25/85,107
6. Step 6: Final answer
   x = 213,193.09