Finding the Third Proportional to 179.53 and 387.72

Step by Step Solution

1. Step 1: Write the proportion equation
   179.53 : 387.72 = 387.72 : x
2. Step 2: Convert to fraction form
   179.53/387.72 = 387.72/x
3. Step 3: Cross multiply
   179.53x = 387.72 × 387.72
4. Step 4: Simplify right side
   179.53x = 150,325.83
5. Step 5: Solve for x
   x = 150,325.83/179.53
6. Step 6: Final answer
   x = 837.32