Finding the Third Proportional to 99.70 and 154.02

Step by Step Solution

1. Step 1: Write the proportion equation
   99.70 : 154.02 = 154.02 : x
2. Step 2: Convert to fraction form
   99.70/154.02 = 154.02/x
3. Step 3: Cross multiply
   99.70x = 154.02 × 154.02
4. Step 4: Simplify right side
   99.70x = 23,722.02
5. Step 5: Solve for x
   x = 23,722.02/99.70
6. Step 6: Final answer
   x = 237.93