Finding the Third Proportional to 171,792 and 259,571.25

Step by Step Solution

1. Step 1: Write the proportion equation
   171,792 : 259,571.25 = 259,571.25 : x
2. Step 2: Convert to fraction form
   171,792/259,571.25 = 259,571.25/x
3. Step 3: Cross multiply
   171,792x = 259,571.25 × 259,571.25
4. Step 4: Simplify right side
   171,792x = 67,377,233,826.56
5. Step 5: Solve for x
   x = 67,377,233,826.56/171,792
6. Step 6: Final answer
   x = 392,202.39