Finding the Third Proportional to 187,456.50 and 404,856

Step by Step Solution

1. Step 1: Write the proportion equation
   187,456.50 : 404,856 = 404,856 : x
2. Step 2: Convert to fraction form
   187,456.50/404,856 = 404,856/x
3. Step 3: Cross multiply
   187,456.50x = 404,856 × 404,856
4. Step 4: Simplify right side
   187,456.50x = 163,908,380,736
5. Step 5: Solve for x
   x = 163,908,380,736/187,456.50
6. Step 6: Final answer
   x = 874,380.89