Finding the Third Proportional to 8,309,506.50 and 12,431,044.69

Step by Step Solution

1. Step 1: Write the proportion equation
   8,309,506.50 : 12,431,044.69 = 12,431,044.69 : x
2. Step 2: Convert to fraction form
   8,309,506.50/12,431,044.69 = 12,431,044.69/x
3. Step 3: Cross multiply
   8,309,506.50x = 12,431,044.69 × 12,431,044.69
4. Step 4: Simplify right side
   8,309,506.50x = 154,530,872,022,621.97
5. Step 5: Solve for x
   x = 154,530,872,022,621.97/8,309,506.50
6. Step 6: Final answer
   x = 18,596,877.21