Finding the Third Proportional to 127,998,494 and 280,910,896

Step by Step Solution

1. Step 1: Write the proportion equation
   127,998,494 : 280,910,896 = 280,910,896 : x
2. Step 2: Convert to fraction form
   127,998,494/280,910,896 = 280,910,896/x
3. Step 3: Cross multiply
   127,998,494x = 280,910,896 × 280,910,896
4. Step 4: Simplify right side
   127,998,494x = 78,910,931,491,522,816
5. Step 5: Solve for x
   x = 78,910,931,491,522,816/127,998,494
6. Step 6: Final answer
   x = 616,498,905.77