Finding the Third Proportional to 403,986 and 614,743.50

Step by Step Solution

1. Step 1: Write the proportion equation
   403,986 : 614,743.50 = 614,743.50 : x
2. Step 2: Convert to fraction form
   403,986/614,743.50 = 614,743.50/x
3. Step 3: Cross multiply
   403,986x = 614,743.50 × 614,743.50
4. Step 4: Simplify right side
   403,986x = 377,909,570,792.25
5. Step 5: Solve for x
   x = 377,909,570,792.25/403,986
6. Step 6: Final answer
   x = 935,452.15