Finding the Third Proportional to 199,552.50 and 315,948

Step by Step Solution

1. Step 1: Write the proportion equation
   199,552.50 : 315,948 = 315,948 : x
2. Step 2: Convert to fraction form
   199,552.50/315,948 = 315,948/x
3. Step 3: Cross multiply
   199,552.50x = 315,948 × 315,948
4. Step 4: Simplify right side
   199,552.50x = 99,823,138,704
5. Step 5: Solve for x
   x = 99,823,138,704/199,552.50
6. Step 6: Final answer
   x = 500,234.97