Finding the Third Proportional to 403,948 and 614,315.50

Step by Step Solution

1. Step 1: Write the proportion equation
   403,948 : 614,315.50 = 614,315.50 : x
2. Step 2: Convert to fraction form
   403,948/614,315.50 = 614,315.50/x
3. Step 3: Cross multiply
   403,948x = 614,315.50 × 614,315.50
4. Step 4: Simplify right side
   403,948x = 377,383,533,540.25
5. Step 5: Solve for x
   x = 377,383,533,540.25/403,948
6. Step 6: Final answer
   x = 934,237.91