Finding the Third Proportional to 101.72 and 130.83

Step by Step Solution

1. Step 1: Write the proportion equation
   101.72 : 130.83 = 130.83 : x
2. Step 2: Convert to fraction form
   101.72/130.83 = 130.83/x
3. Step 3: Cross multiply
   101.72x = 130.83 × 130.83
4. Step 4: Simplify right side
   101.72x = 17,117.53
5. Step 5: Solve for x
   x = 17,117.53/101.72
6. Step 6: Final answer
   x = 168.27