Finding the Third Proportional to 99.04 and 145.71

Step by Step Solution

1. Step 1: Write the proportion equation
   99.04 : 145.71 = 145.71 : x
2. Step 2: Convert to fraction form
   99.04/145.71 = 145.71/x
3. Step 3: Cross multiply
   99.04x = 145.71 × 145.71
4. Step 4: Simplify right side
   99.04x = 21,229.97
5. Step 5: Solve for x
   x = 21,229.97/99.04
6. Step 6: Final answer
   x = 214.37