Finding the Third Proportional to 171,474 and 260,629.50

Step by Step Solution

1. Step 1: Write the proportion equation
   171,474 : 260,629.50 = 260,629.50 : x
2. Step 2: Convert to fraction form
   171,474/260,629.50 = 260,629.50/x
3. Step 3: Cross multiply
   171,474x = 260,629.50 × 260,629.50
4. Step 4: Simplify right side
   171,474x = 67,927,736,270.25
5. Step 5: Solve for x
   x = 67,927,736,270.25/171,474
6. Step 6: Final answer
   x = 396,140.15