Finding the Third Proportional to 482.20 and 654.33

Step by Step Solution

1. Step 1: Write the proportion equation
   482.20 : 654.33 = 654.33 : x
2. Step 2: Convert to fraction form
   482.20/654.33 = 654.33/x
3. Step 3: Cross multiply
   482.20x = 654.33 × 654.33
4. Step 4: Simplify right side
   482.20x = 428,145.30
5. Step 5: Solve for x
   x = 428,145.30/482.20
6. Step 6: Final answer
   x = 887.89