Finding the Third Proportional to 72.28 and 155.95

Step by Step Solution

1. Step 1: Write the proportion equation
   72.28 : 155.95 = 155.95 : x
2. Step 2: Convert to fraction form
   72.28/155.95 = 155.95/x
3. Step 3: Cross multiply
   72.28x = 155.95 × 155.95
4. Step 4: Simplify right side
   72.28x = 24,321.38
5. Step 5: Solve for x
   x = 24,321.38/72.28
6. Step 6: Final answer
   x = 336.48