Finding the Third Proportional to 8,653,138 and 13,451,694

Step by Step Solution

1. Step 1: Write the proportion equation
   8,653,138 : 13,451,694 = 13,451,694 : x
2. Step 2: Convert to fraction form
   8,653,138/13,451,694 = 13,451,694/x
3. Step 3: Cross multiply
   8,653,138x = 13,451,694 × 13,451,694
4. Step 4: Simplify right side
   8,653,138x = 180,948,071,469,636
5. Step 5: Solve for x
   x = 180,948,071,469,636/8,653,138
6. Step 6: Final answer
   x = 20,911,266.12