Finding the Third Proportional to 443.25 and 1,028.39

Step by Step Solution

1. Step 1: Write the proportion equation
   443.25 : 1,028.39 = 1,028.39 : x
2. Step 2: Convert to fraction form
   443.25/1,028.39 = 1,028.39/x
3. Step 3: Cross multiply
   443.25x = 1,028.39 × 1,028.39
4. Step 4: Simplify right side
   443.25x = 1,057,587.28
5. Step 5: Solve for x
   x = 1,057,587.28/443.25
6. Step 6: Final answer
   x = 2,385.98