Finding the Third Proportional to 100.46 and 155.51

Step by Step Solution

1. Step 1: Write the proportion equation
   100.46 : 155.51 = 155.51 : x
2. Step 2: Convert to fraction form
   100.46/155.51 = 155.51/x
3. Step 3: Cross multiply
   100.46x = 155.51 × 155.51
4. Step 4: Simplify right side
   100.46x = 24,184.50
5. Step 5: Solve for x
   x = 24,184.50/100.46
6. Step 6: Final answer
   x = 240.74