Finding the Third Proportional to 72,328 and 155,560

Step by Step Solution

1. Step 1: Write the proportion equation
   72,328 : 155,560 = 155,560 : x
2. Step 2: Convert to fraction form
   72,328/155,560 = 155,560/x
3. Step 3: Cross multiply
   72,328x = 155,560 × 155,560
4. Step 4: Simplify right side
   72,328x = 24,198,913,600
5. Step 5: Solve for x
   x = 24,198,913,600/72,328
6. Step 6: Final answer
   x = 334,571.86