Finding the Third Proportional to 403,281 and 548,023.50

Step by Step Solution

1. Step 1: Write the proportion equation
   403,281 : 548,023.50 = 548,023.50 : x
2. Step 2: Convert to fraction form
   403,281/548,023.50 = 548,023.50/x
3. Step 3: Cross multiply
   403,281x = 548,023.50 × 548,023.50
4. Step 4: Simplify right side
   403,281x = 300,329,756,552.25
5. Step 5: Solve for x
   x = 300,329,756,552.25/403,281
6. Step 6: Final answer
   x = 744,715.86