Finding the Third Proportional to 187,046 and 400,892

Step by Step Solution

1. Step 1: Write the proportion equation
   187,046 : 400,892 = 400,892 : x
2. Step 2: Convert to fraction form
   187,046/400,892 = 400,892/x
3. Step 3: Cross multiply
   187,046x = 400,892 × 400,892
4. Step 4: Simplify right side
   187,046x = 160,714,395,664
5. Step 5: Solve for x
   x = 160,714,395,664/187,046
6. Step 6: Final answer
   x = 859,223.91