Finding the Third Proportional to 552,399 and 853,019.50

Step by Step Solution

1. Step 1: Write the proportion equation
   552,399 : 853,019.50 = 853,019.50 : x
2. Step 2: Convert to fraction form
   552,399/853,019.50 = 853,019.50/x
3. Step 3: Cross multiply
   552,399x = 853,019.50 × 853,019.50
4. Step 4: Simplify right side
   552,399x = 727,642,267,380.25
5. Step 5: Solve for x
   x = 727,642,267,380.25/552,399
6. Step 6: Final answer
   x = 1,317,240.38