Finding the Third Proportional to 8,329,216.50 and 12,582,405

Step by Step Solution

1. Step 1: Write the proportion equation
   8,329,216.50 : 12,582,405 = 12,582,405 : x
2. Step 2: Convert to fraction form
   8,329,216.50/12,582,405 = 12,582,405/x
3. Step 3: Cross multiply
   8,329,216.50x = 12,582,405 × 12,582,405
4. Step 4: Simplify right side
   8,329,216.50x = 158,316,915,584,025
5. Step 5: Solve for x
   x = 158,316,915,584,025/8,329,216.50
6. Step 6: Final answer
   x = 19,007,419.92