Finding the Third Proportional to 174,320 and 245,469

Step by Step Solution

1. Step 1: Write the proportion equation
   174,320 : 245,469 = 245,469 : x
2. Step 2: Convert to fraction form
   174,320/245,469 = 245,469/x
3. Step 3: Cross multiply
   174,320x = 245,469 × 245,469
4. Step 4: Simplify right side
   174,320x = 60,255,029,961
5. Step 5: Solve for x
   x = 60,255,029,961/174,320
6. Step 6: Final answer
   x = 345,657.58