Finding the Third Proportional to 99.88 and 149.94

Step by Step Solution

1. Step 1: Write the proportion equation
   99.88 : 149.94 = 149.94 : x
2. Step 2: Convert to fraction form
   99.88/149.94 = 149.94/x
3. Step 3: Cross multiply
   99.88x = 149.94 × 149.94
4. Step 4: Simplify right side
   99.88x = 22,481.25
5. Step 5: Solve for x
   x = 22,481.25/99.88
6. Step 6: Final answer
   x = 225.09