Finding the Third Proportional to 155.06 and 334.31

Step by Step Solution

1. Step 1: Write the proportion equation
   155.06 : 334.31 = 334.31 : x
2. Step 2: Convert to fraction form
   155.06/334.31 = 334.31/x
3. Step 3: Cross multiply
   155.06x = 334.31 × 334.31
4. Step 4: Simplify right side
   155.06x = 111,764.85
5. Step 5: Solve for x
   x = 111,764.85/155.06
6. Step 6: Final answer
   x = 720.77