Finding the Third Proportional to 85,957 and 131,405

Step by Step Solution

1. Step 1: Write the proportion equation
   85,957 : 131,405 = 131,405 : x
2. Step 2: Convert to fraction form
   85,957/131,405 = 131,405/x
3. Step 3: Cross multiply
   85,957x = 131,405 × 131,405
4. Step 4: Simplify right side
   85,957x = 17,267,274,025
5. Step 5: Solve for x
   x = 17,267,274,025/85,957
6. Step 6: Final answer
   x = 200,882.70