Finding the Third Proportional to 100.25 and 154.75

Step by Step Solution

1. Step 1: Write the proportion equation
   100.25 : 154.75 = 154.75 : x
2. Step 2: Convert to fraction form
   100.25/154.75 = 154.75/x
3. Step 3: Cross multiply
   100.25x = 154.75 × 154.75
4. Step 4: Simplify right side
   100.25x = 23,947.56
5. Step 5: Solve for x
   x = 23,947.56/100.25
6. Step 6: Final answer
   x = 238.88