Finding the Third Proportional to 279,020 and 404,922

Step by Step Solution

1. Step 1: Write the proportion equation
   279,020 : 404,922 = 404,922 : x
2. Step 2: Convert to fraction form
   279,020/404,922 = 404,922/x
3. Step 3: Cross multiply
   279,020x = 404,922 × 404,922
4. Step 4: Simplify right side
   279,020x = 163,961,826,084
5. Step 5: Solve for x
   x = 163,961,826,084/279,020
6. Step 6: Final answer
   x = 587,634.67