Finding the Third Proportional to 15,499,524 and 21,276,630

Step by Step Solution

1. Step 1: Write the proportion equation
   15,499,524 : 21,276,630 = 21,276,630 : x
2. Step 2: Convert to fraction form
   15,499,524/21,276,630 = 21,276,630/x
3. Step 3: Cross multiply
   15,499,524x = 21,276,630 × 21,276,630
4. Step 4: Simplify right side
   15,499,524x = 452,694,984,156,900
5. Step 5: Solve for x
   x = 452,694,984,156,900/15,499,524
6. Step 6: Final answer
   x = 29,207,024.95