Finding the Third Proportional to 189,294 and 404,851

Step by Step Solution

1. Step 1: Write the proportion equation
   189,294 : 404,851 = 404,851 : x
2. Step 2: Convert to fraction form
   189,294/404,851 = 404,851/x
3. Step 3: Cross multiply
   189,294x = 404,851 × 404,851
4. Step 4: Simplify right side
   189,294x = 163,904,332,201
5. Step 5: Solve for x
   x = 163,904,332,201/189,294
6. Step 6: Final answer
   x = 865,871.78