Finding the Third Proportional to 394,204.50 and 864,711

Step by Step Solution

1. Step 1: Write the proportion equation
   394,204.50 : 864,711 = 864,711 : x
2. Step 2: Convert to fraction form
   394,204.50/864,711 = 864,711/x
3. Step 3: Cross multiply
   394,204.50x = 864,711 × 864,711
4. Step 4: Simplify right side
   394,204.50x = 747,725,113,521
5. Step 5: Solve for x
   x = 747,725,113,521/394,204.50
6. Step 6: Final answer
   x = 1,896,794.97