Finding the Third Proportional to 8,898,657,456 and 12,118,452,558

Step by Step Solution

1. Step 1: Write the proportion equation
   8,898,657,456 : 12,118,452,558 = 12,118,452,558 : x
2. Step 2: Convert to fraction form
   8,898,657,456/12,118,452,558 = 12,118,452,558/x
3. Step 3: Cross multiply
   8,898,657,456x = 12,118,452,558 × 12,118,452,558
4. Step 4: Simplify right side
   8,898,657,456x = 146,856,892,400,496,738,304
5. Step 5: Solve for x
   x = 146,856,892,400,496,738,304/8,898,657,456
6. Step 6: Final answer
   x = 16,503,263,905.44