Finding the Third Proportional to 171,816 and 252,571.50

Step by Step Solution

1. Step 1: Write the proportion equation
   171,816 : 252,571.50 = 252,571.50 : x
2. Step 2: Convert to fraction form
   171,816/252,571.50 = 252,571.50/x
3. Step 3: Cross multiply
   171,816x = 252,571.50 × 252,571.50
4. Step 4: Simplify right side
   171,816x = 63,792,362,612.25
5. Step 5: Solve for x
   x = 63,792,362,612.25/171,816
6. Step 6: Final answer
   x = 371,283.02