Finding the Third Proportional to 8,898,657,449 and 12,118,452,550

Step by Step Solution

1. Step 1: Write the proportion equation
   8,898,657,449 : 12,118,452,550 = 12,118,452,550 : x
2. Step 2: Convert to fraction form
   8,898,657,449/12,118,452,550 = 12,118,452,550/x
3. Step 3: Cross multiply
   8,898,657,449x = 12,118,452,550 × 12,118,452,550
4. Step 4: Simplify right side
   8,898,657,449x = 146,856,892,206,601,502,720
5. Step 5: Solve for x
   x = 146,856,892,206,601,502,720/8,898,657,449
6. Step 6: Final answer
   x = 16,503,263,896.63