Finding the Third Proportional to 85,612 and 131,658

Step by Step Solution

1. Step 1: Write the proportion equation
   85,612 : 131,658 = 131,658 : x
2. Step 2: Convert to fraction form
   85,612/131,658 = 131,658/x
3. Step 3: Cross multiply
   85,612x = 131,658 × 131,658
4. Step 4: Simplify right side
   85,612x = 17,333,828,964
5. Step 5: Solve for x
   x = 17,333,828,964/85,612
6. Step 6: Final answer
   x = 202,469.62