Finding the Third Proportional to 72.87 and 151.92

Step by Step Solution

1. Step 1: Write the proportion equation
   72.87 : 151.92 = 151.92 : x
2. Step 2: Convert to fraction form
   72.87/151.92 = 151.92/x
3. Step 3: Cross multiply
   72.87x = 151.92 × 151.92
4. Step 4: Simplify right side
   72.87x = 23,080.26
5. Step 5: Solve for x
   x = 23,080.26/72.87
6. Step 6: Final answer
   x = 316.74