Finding the Third Proportional to 155,280 and 329,024

Step by Step Solution

1. Step 1: Write the proportion equation
   155,280 : 329,024 = 329,024 : x
2. Step 2: Convert to fraction form
   155,280/329,024 = 329,024/x
3. Step 3: Cross multiply
   155,280x = 329,024 × 329,024
4. Step 4: Simplify right side
   155,280x = 108,256,792,576
5. Step 5: Solve for x
   x = 108,256,792,576/155,280
6. Step 6: Final answer
   x = 697,171.51