Finding the Third Proportional to 253,078.50 and 550,441.50

Step by Step Solution

1. Step 1: Write the proportion equation
   253,078.50 : 550,441.50 = 550,441.50 : x
2. Step 2: Convert to fraction form
   253,078.50/550,441.50 = 550,441.50/x
3. Step 3: Cross multiply
   253,078.50x = 550,441.50 × 550,441.50
4. Step 4: Simplify right side
   253,078.50x = 302,985,844,922.25
5. Step 5: Solve for x
   x = 302,985,844,922.25/253,078.50
6. Step 6: Final answer
   x = 1,197,201.05