Finding the Third Proportional to 171,475.50 and 254,728.50

Step by Step Solution

1. Step 1: Write the proportion equation
   171,475.50 : 254,728.50 = 254,728.50 : x
2. Step 2: Convert to fraction form
   171,475.50/254,728.50 = 254,728.50/x
3. Step 3: Cross multiply
   171,475.50x = 254,728.50 × 254,728.50
4. Step 4: Simplify right side
   171,475.50x = 64,886,608,712.25
5. Step 5: Solve for x
   x = 64,886,608,712.25/171,475.50
6. Step 6: Final answer
   x = 378,401.63