Finding the Third Proportional to 99.28 and 149.06

Step by Step Solution

1. Step 1: Write the proportion equation
   99.28 : 149.06 = 149.06 : x
2. Step 2: Convert to fraction form
   99.28/149.06 = 149.06/x
3. Step 3: Cross multiply
   99.28x = 149.06 × 149.06
4. Step 4: Simplify right side
   99.28x = 22,219.63
5. Step 5: Solve for x
   x = 22,219.63/99.28
6. Step 6: Final answer
   x = 223.80