Finding the Third Proportional to 155.41 and 240.31

Step by Step Solution

1. Step 1: Write the proportion equation
   155.41 : 240.31 = 240.31 : x
2. Step 2: Convert to fraction form
   155.41/240.31 = 240.31/x
3. Step 3: Cross multiply
   155.41x = 240.31 × 240.31
4. Step 4: Simplify right side
   155.41x = 57,749.16
5. Step 5: Solve for x
   x = 57,749.16/155.41
6. Step 6: Final answer
   x = 371.60