Finding the Third Proportional to 8,513,624 and 12,757,920

Step by Step Solution

1. Step 1: Write the proportion equation
   8,513,624 : 12,757,920 = 12,757,920 : x
2. Step 2: Convert to fraction form
   8,513,624/12,757,920 = 12,757,920/x
3. Step 3: Cross multiply
   8,513,624x = 12,757,920 × 12,757,920
4. Step 4: Simplify right side
   8,513,624x = 162,764,522,726,400
5. Step 5: Solve for x
   x = 162,764,522,726,400/8,513,624
6. Step 6: Final answer
   x = 19,118,124.40