Finding the Third Proportional to 60,980 and 131,680

Step by Step Solution

1. Step 1: Write the proportion equation
   60,980 : 131,680 = 131,680 : x
2. Step 2: Convert to fraction form
   60,980/131,680 = 131,680/x
3. Step 3: Cross multiply
   60,980x = 131,680 × 131,680
4. Step 4: Simplify right side
   60,980x = 17,339,622,400
5. Step 5: Solve for x
   x = 17,339,622,400/60,980
6. Step 6: Final answer
   x = 284,349.33