Finding the Third Proportional to 425,427 and 658,653.50

Step by Step Solution

1. Step 1: Write the proportion equation
   425,427 : 658,653.50 = 658,653.50 : x
2. Step 2: Convert to fraction form
   425,427/658,653.50 = 658,653.50/x
3. Step 3: Cross multiply
   425,427x = 658,653.50 × 658,653.50
4. Step 4: Simplify right side
   425,427x = 433,824,433,062.25
5. Step 5: Solve for x
   x = 433,824,433,062.25/425,427
6. Step 6: Final answer
   x = 1,019,738.83