Finding the Third Proportional to 8,309,524 and 12,431,068

Step by Step Solution

1. Step 1: Write the proportion equation
   8,309,524 : 12,431,068 = 12,431,068 : x
2. Step 2: Convert to fraction form
   8,309,524/12,431,068 = 12,431,068/x
3. Step 3: Cross multiply
   8,309,524x = 12,431,068 × 12,431,068
4. Step 4: Simplify right side
   8,309,524x = 154,531,451,620,624
5. Step 5: Solve for x
   x = 154,531,451,620,624/8,309,524
6. Step 6: Final answer
   x = 18,596,907.79