Finding the Third Proportional to 404,872 and 859,558

Step by Step Solution

1. Step 1: Write the proportion equation
   404,872 : 859,558 = 859,558 : x
2. Step 2: Convert to fraction form
   404,872/859,558 = 859,558/x
3. Step 3: Cross multiply
   404,872x = 859,558 × 859,558
4. Step 4: Simplify right side
   404,872x = 738,839,955,364
5. Step 5: Solve for x
   x = 738,839,955,364/404,872
6. Step 6: Final answer
   x = 1,824,872.94