Finding the Third Proportional to 127,480 and 280,124

Step by Step Solution

1. Step 1: Write the proportion equation
   127,480 : 280,124 = 280,124 : x
2. Step 2: Convert to fraction form
   127,480/280,124 = 280,124/x
3. Step 3: Cross multiply
   127,480x = 280,124 × 280,124
4. Step 4: Simplify right side
   127,480x = 78,469,455,376
5. Step 5: Solve for x
   x = 78,469,455,376/127,480
6. Step 6: Final answer
   x = 615,543.26