Finding the Third Proportional to 187,440.50 and 404,815

Step by Step Solution

1. Step 1: Write the proportion equation
   187,440.50 : 404,815 = 404,815 : x
2. Step 2: Convert to fraction form
   187,440.50/404,815 = 404,815/x
3. Step 3: Cross multiply
   187,440.50x = 404,815 × 404,815
4. Step 4: Simplify right side
   187,440.50x = 163,875,184,225
5. Step 5: Solve for x
   x = 163,875,184,225/187,440.50
6. Step 6: Final answer
   x = 874,278.42