Finding the Third Proportional to 207,846 and 315,049.50

Step by Step Solution

1. Step 1: Write the proportion equation
   207,846 : 315,049.50 = 315,049.50 : x
2. Step 2: Convert to fraction form
   207,846/315,049.50 = 315,049.50/x
3. Step 3: Cross multiply
   207,846x = 315,049.50 × 315,049.50
4. Step 4: Simplify right side
   207,846x = 99,256,187,450.25
5. Step 5: Solve for x
   x = 99,256,187,450.25/207,846
6. Step 6: Final answer
   x = 477,546.78