Finding the Third Proportional to 60,980 and 133,620

Step by Step Solution

1. Step 1: Write the proportion equation
   60,980 : 133,620 = 133,620 : x
2. Step 2: Convert to fraction form
   60,980/133,620 = 133,620/x
3. Step 3: Cross multiply
   60,980x = 133,620 × 133,620
4. Step 4: Simplify right side
   60,980x = 17,854,304,400
5. Step 5: Solve for x
   x = 17,854,304,400/60,980
6. Step 6: Final answer
   x = 292,789.51