Finding the Third Proportional to 72.63 and 155.38

Step by Step Solution

1. Step 1: Write the proportion equation
   72.63 : 155.38 = 155.38 : x
2. Step 2: Convert to fraction form
   72.63/155.38 = 155.38/x
3. Step 3: Cross multiply
   72.63x = 155.38 × 155.38
4. Step 4: Simplify right side
   72.63x = 24,141.39
5. Step 5: Solve for x
   x = 24,141.39/72.63
6. Step 6: Final answer
   x = 332.41