Finding the Third Proportional to 67.92 and 103.36

Step by Step Solution

1. Step 1: Write the proportion equation
   67.92 : 103.36 = 103.36 : x
2. Step 2: Convert to fraction form
   67.92/103.36 = 103.36/x
3. Step 3: Cross multiply
   67.92x = 103.36 × 103.36
4. Step 4: Simplify right side
   67.92x = 10,683.16
5. Step 5: Solve for x
   x = 10,683.16/67.92
6. Step 6: Final answer
   x = 157.29