Finding the Third Proportional to 404,865 and 859,546

Step by Step Solution

1. Step 1: Write the proportion equation
   404,865 : 859,546 = 859,546 : x
2. Step 2: Convert to fraction form
   404,865/859,546 = 859,546/x
3. Step 3: Cross multiply
   404,865x = 859,546 × 859,546
4. Step 4: Simplify right side
   404,865x = 738,819,326,116
5. Step 5: Solve for x
   x = 738,819,326,116/404,865
6. Step 6: Final answer
   x = 1,824,853.53