Finding the Third Proportional to 127,632 and 280,992

Step by Step Solution

1. Step 1: Write the proportion equation
   127,632 : 280,992 = 280,992 : x
2. Step 2: Convert to fraction form
   127,632/280,992 = 280,992/x
3. Step 3: Cross multiply
   127,632x = 280,992 × 280,992
4. Step 4: Simplify right side
   127,632x = 78,956,504,064
5. Step 5: Solve for x
   x = 78,956,504,064/127,632
6. Step 6: Final answer
   x = 618,626.24