Finding the Third Proportional to 62,820 and 132,120

Step by Step Solution

1. Step 1: Write the proportion equation
   62,820 : 132,120 = 132,120 : x
2. Step 2: Convert to fraction form
   62,820/132,120 = 132,120/x
3. Step 3: Cross multiply
   62,820x = 132,120 × 132,120
4. Step 4: Simplify right side
   62,820x = 17,455,694,400
5. Step 5: Solve for x
   x = 17,455,694,400/62,820
6. Step 6: Final answer
   x = 277,868.42