Finding the Third Proportional to 8,653,140 and 13,451,697

Step by Step Solution

1. Step 1: Write the proportion equation
   8,653,140 : 13,451,697 = 13,451,697 : x
2. Step 2: Convert to fraction form
   8,653,140/13,451,697 = 13,451,697/x
3. Step 3: Cross multiply
   8,653,140x = 13,451,697 × 13,451,697
4. Step 4: Simplify right side
   8,653,140x = 180,948,152,179,809
5. Step 5: Solve for x
   x = 180,948,152,179,809/8,653,140
6. Step 6: Final answer
   x = 20,911,270.61