Finding the Third Proportional to 127,998,492 and 280,910,892

Step by Step Solution

1. Step 1: Write the proportion equation
   127,998,492 : 280,910,892 = 280,910,892 : x
2. Step 2: Convert to fraction form
   127,998,492/280,910,892 = 280,910,892/x
3. Step 3: Cross multiply
   127,998,492x = 280,910,892 × 280,910,892
4. Step 4: Simplify right side
   127,998,492x = 78,910,929,244,235,664
5. Step 5: Solve for x
   x = 78,910,929,244,235,664/127,998,492
6. Step 6: Final answer
   x = 616,498,897.85