Finding the Third Proportional to 72.56 and 155.46

Step by Step Solution

1. Step 1: Write the proportion equation
   72.56 : 155.46 = 155.46 : x
2. Step 2: Convert to fraction form
   72.56/155.46 = 155.46/x
3. Step 3: Cross multiply
   72.56x = 155.46 × 155.46
4. Step 4: Simplify right side
   72.56x = 24,168.10
5. Step 5: Solve for x
   x = 24,168.10/72.56
6. Step 6: Final answer
   x = 333.07