Finding the Third Proportional to 100.69 and 130.22

Step by Step Solution

1. Step 1: Write the proportion equation
   100.69 : 130.22 = 130.22 : x
2. Step 2: Convert to fraction form
   100.69/130.22 = 130.22/x
3. Step 3: Cross multiply
   100.69x = 130.22 × 130.22
4. Step 4: Simplify right side
   100.69x = 16,956.92
5. Step 5: Solve for x
   x = 16,956.92/100.69
6. Step 6: Final answer
   x = 168.41