Finding the Third Proportional to 72.63 and 152.75

Step by Step Solution

1. Step 1: Write the proportion equation
   72.63 : 152.75 = 152.75 : x
2. Step 2: Convert to fraction form
   72.63/152.75 = 152.75/x
3. Step 3: Cross multiply
   72.63x = 152.75 × 152.75
4. Step 4: Simplify right side
   72.63x = 23,332.56
5. Step 5: Solve for x
   x = 23,332.56/72.63
6. Step 6: Final answer
   x = 321.27