Finding the Third Proportional to 8,898,657,450 and 12,118,452,551.50

Step by Step Solution

1. Step 1: Write the proportion equation
   8,898,657,450 : 12,118,452,551.50 = 12,118,452,551.50 : x
2. Step 2: Convert to fraction form
   8,898,657,450/12,118,452,551.50 = 12,118,452,551.50/x
3. Step 3: Cross multiply
   8,898,657,450x = 12,118,452,551.50 × 12,118,452,551.50
4. Step 4: Simplify right side
   8,898,657,450x = 146,856,892,242,956,861,440
5. Step 5: Solve for x
   x = 146,856,892,242,956,861,440/8,898,657,450
6. Step 6: Final answer
   x = 16,503,263,898.87