Finding the Third Proportional to 100.88 and 148.88

Step by Step Solution

1. Step 1: Write the proportion equation
   100.88 : 148.88 = 148.88 : x
2. Step 2: Convert to fraction form
   100.88/148.88 = 148.88/x
3. Step 3: Cross multiply
   100.88x = 148.88 × 148.88
4. Step 4: Simplify right side
   100.88x = 22,163.77
5. Step 5: Solve for x
   x = 22,163.77/100.88
6. Step 6: Final answer
   x = 219.72