Finding the Third Proportional to 172,003.50 and 404,709.75

Step by Step Solution

1. Step 1: Write the proportion equation
   172,003.50 : 404,709.75 = 404,709.75 : x
2. Step 2: Convert to fraction form
   172,003.50/404,709.75 = 404,709.75/x
3. Step 3: Cross multiply
   172,003.50x = 404,709.75 × 404,709.75
4. Step 4: Simplify right side
   172,003.50x = 163,789,981,745.06
5. Step 5: Solve for x
   x = 163,789,981,745.06/172,003.50
6. Step 6: Final answer
   x = 952,247.96