Finding the Third Proportional to 28,632 and 63,120

Step by Step Solution

1. Step 1: Write the proportion equation
   28,632 : 63,120 = 63,120 : x
2. Step 2: Convert to fraction form
   28,632/63,120 = 63,120/x
3. Step 3: Cross multiply
   28,632x = 63,120 × 63,120
4. Step 4: Simplify right side
   28,632x = 3,984,134,400
5. Step 5: Solve for x
   x = 3,984,134,400/28,632
6. Step 6: Final answer
   x = 139,149.71