Finding the Third Proportional to 33,280 and 71,456

Step by Step Solution

1. Step 1: Write the proportion equation
   33,280 : 71,456 = 71,456 : x
2. Step 2: Convert to fraction form
   33,280/71,456 = 71,456/x
3. Step 3: Cross multiply
   33,280x = 71,456 × 71,456
4. Step 4: Simplify right side
   33,280x = 5,105,959,936
5. Step 5: Solve for x
   x = 5,105,959,936/33,280
6. Step 6: Final answer
   x = 153,424.28