Finding the Third Proportional to 99.35 and 148.71

Step by Step Solution

1. Step 1: Write the proportion equation
   99.35 : 148.71 = 148.71 : x
2. Step 2: Convert to fraction form
   99.35/148.71 = 148.71/x
3. Step 3: Cross multiply
   99.35x = 148.71 × 148.71
4. Step 4: Simplify right side
   99.35x = 22,114.94
5. Step 5: Solve for x
   x = 22,114.94/99.35
6. Step 6: Final answer
   x = 222.59