Finding the Third Proportional to 339,533 and 719,540.50

Step by Step Solution

1. Step 1: Write the proportion equation
   339,533 : 719,540.50 = 719,540.50 : x
2. Step 2: Convert to fraction form
   339,533/719,540.50 = 719,540.50/x
3. Step 3: Cross multiply
   339,533x = 719,540.50 × 719,540.50
4. Step 4: Simplify right side
   339,533x = 517,738,531,140.25
5. Step 5: Solve for x
   x = 517,738,531,140.25/339,533
6. Step 6: Final answer
   x = 1,524,854.82