Finding the Third Proportional to 63,978 and 132,060

Step by Step Solution

1. Step 1: Write the proportion equation
   63,978 : 132,060 = 132,060 : x
2. Step 2: Convert to fraction form
   63,978/132,060 = 132,060/x
3. Step 3: Cross multiply
   63,978x = 132,060 × 132,060
4. Step 4: Simplify right side
   63,978x = 17,439,843,600
5. Step 5: Solve for x
   x = 17,439,843,600/63,978
6. Step 6: Final answer
   x = 272,591.26