Finding the Third Proportional to 398,479.50 and 859,932

Step by Step Solution

1. Step 1: Write the proportion equation
   398,479.50 : 859,932 = 859,932 : x
2. Step 2: Convert to fraction form
   398,479.50/859,932 = 859,932/x
3. Step 3: Cross multiply
   398,479.50x = 859,932 × 859,932
4. Step 4: Simplify right side
   398,479.50x = 739,483,044,624
5. Step 5: Solve for x
   x = 739,483,044,624/398,479.50
6. Step 6: Final answer
   x = 1,855,761.83