Finding the Third Proportional to 394,320 and 855,073.50

Step by Step Solution

1. Step 1: Write the proportion equation
   394,320 : 855,073.50 = 855,073.50 : x
2. Step 2: Convert to fraction form
   394,320/855,073.50 = 855,073.50/x
3. Step 3: Cross multiply
   394,320x = 855,073.50 × 855,073.50
4. Step 4: Simplify right side
   394,320x = 731,150,690,402.25
5. Step 5: Solve for x
   x = 731,150,690,402.25/394,320
6. Step 6: Final answer
   x = 1,854,206.46