Finding the Third Proportional to 189,292 and 404,849

Step by Step Solution

1. Step 1: Write the proportion equation
   189,292 : 404,849 = 404,849 : x
2. Step 2: Convert to fraction form
   189,292/404,849 = 404,849/x
3. Step 3: Cross multiply
   189,292x = 404,849 × 404,849
4. Step 4: Simplify right side
   189,292x = 163,902,712,801
5. Step 5: Solve for x
   x = 163,902,712,801/189,292
6. Step 6: Final answer
   x = 865,872.37