Finding the Third Proportional to 100.69 and 124.03

Step by Step Solution

1. Step 1: Write the proportion equation
   100.69 : 124.03 = 124.03 : x
2. Step 2: Convert to fraction form
   100.69/124.03 = 124.03/x
3. Step 3: Cross multiply
   100.69x = 124.03 × 124.03
4. Step 4: Simplify right side
   100.69x = 15,383.75
5. Step 5: Solve for x
   x = 15,383.75/100.69
6. Step 6: Final answer
   x = 152.79