Finding the Third Proportional to 67.72 and 104.12

Step by Step Solution

1. Step 1: Write the proportion equation
   67.72 : 104.12 = 104.12 : x
2. Step 2: Convert to fraction form
   67.72/104.12 = 104.12/x
3. Step 3: Cross multiply
   67.72x = 104.12 × 104.12
4. Step 4: Simplify right side
   67.72x = 10,839.98
5. Step 5: Solve for x
   x = 10,839.98/67.72
6. Step 6: Final answer
   x = 160.06