Finding the Third Proportional to 187,122 and 400,002

Step by Step Solution

1. Step 1: Write the proportion equation
   187,122 : 400,002 = 400,002 : x
2. Step 2: Convert to fraction form
   187,122/400,002 = 400,002/x
3. Step 3: Cross multiply
   187,122x = 400,002 × 400,002
4. Step 4: Simplify right side
   187,122x = 160,001,600,004
5. Step 5: Solve for x
   x = 160,001,600,004/187,122
6. Step 6: Final answer
   x = 855,065.68