Finding the Third Proportional to 72.45 and 150.87

Step by Step Solution

1. Step 1: Write the proportion equation
   72.45 : 150.87 = 150.87 : x
2. Step 2: Convert to fraction form
   72.45/150.87 = 150.87/x
3. Step 3: Cross multiply
   72.45x = 150.87 × 150.87
4. Step 4: Simplify right side
   72.45x = 22,760.91
5. Step 5: Solve for x
   x = 22,760.91/72.45
6. Step 6: Final answer
   x = 314.18