Finding the Third Proportional to 72.94 and 155.56

Step by Step Solution

1. Step 1: Write the proportion equation
   72.94 : 155.56 = 155.56 : x
2. Step 2: Convert to fraction form
   72.94/155.56 = 155.56/x
3. Step 3: Cross multiply
   72.94x = 155.56 × 155.56
4. Step 4: Simplify right side
   72.94x = 24,199.69
5. Step 5: Solve for x
   x = 24,199.69/72.94
6. Step 6: Final answer
   x = 331.79