Finding the Third Proportional to 425,722 and 654,559.50

Step by Step Solution

1. Step 1: Write the proportion equation
   425,722 : 654,559.50 = 654,559.50 : x
2. Step 2: Convert to fraction form
   425,722/654,559.50 = 654,559.50/x
3. Step 3: Cross multiply
   425,722x = 654,559.50 × 654,559.50
4. Step 4: Simplify right side
   425,722x = 428,448,139,040.25
5. Step 5: Solve for x
   x = 428,448,139,040.25/425,722
6. Step 6: Final answer
   x = 1,006,403.57