Finding the Third Proportional to 425,726 and 654,564.50

Step by Step Solution

1. Step 1: Write the proportion equation
   425,726 : 654,564.50 = 654,564.50 : x
2. Step 2: Convert to fraction form
   425,726/654,564.50 = 654,564.50/x
3. Step 3: Cross multiply
   425,726x = 654,564.50 × 654,564.50
4. Step 4: Simplify right side
   425,726x = 428,454,684,660.25
5. Step 5: Solve for x
   x = 428,454,684,660.25/425,726
6. Step 6: Final answer
   x = 1,006,409.49