Finding the Third Proportional to 72,576 and 155,520

Step by Step Solution

1. Step 1: Write the proportion equation
   72,576 : 155,520 = 155,520 : x
2. Step 2: Convert to fraction form
   72,576/155,520 = 155,520/x
3. Step 3: Cross multiply
   72,576x = 155,520 × 155,520
4. Step 4: Simplify right side
   72,576x = 24,186,470,400
5. Step 5: Solve for x
   x = 24,186,470,400/72,576
6. Step 6: Final answer
   x = 333,257.14