Finding the Third Proportional to 552,850.50 and 743,401.50

Step by Step Solution

1. Step 1: Write the proportion equation
   552,850.50 : 743,401.50 = 743,401.50 : x
2. Step 2: Convert to fraction form
   552,850.50/743,401.50 = 743,401.50/x
3. Step 3: Cross multiply
   552,850.50x = 743,401.50 × 743,401.50
4. Step 4: Simplify right side
   552,850.50x = 552,645,790,202.25
5. Step 5: Solve for x
   x = 552,645,790,202.25/552,850.50
6. Step 6: Final answer
   x = 999,629.72