Finding the Third Proportional to 187,038 and 400,662

Step by Step Solution

1. Step 1: Write the proportion equation
   187,038 : 400,662 = 400,662 : x
2. Step 2: Convert to fraction form
   187,038/400,662 = 400,662/x
3. Step 3: Cross multiply
   187,038x = 400,662 × 400,662
4. Step 4: Simplify right side
   187,038x = 160,530,038,244
5. Step 5: Solve for x
   x = 160,530,038,244/187,038
6. Step 6: Final answer
   x = 858,274.99