Finding the Third Proportional to 240.89 and 384.33

Step by Step Solution

1. Step 1: Write the proportion equation
   240.89 : 384.33 = 384.33 : x
2. Step 2: Convert to fraction form
   240.89/384.33 = 384.33/x
3. Step 3: Cross multiply
   240.89x = 384.33 × 384.33
4. Step 4: Simplify right side
   240.89x = 147,708.11
5. Step 5: Solve for x
   x = 147,708.11/240.89
6. Step 6: Final answer
   x = 613.17