Finding the Third Proportional to 394,483.50 and 864,000

Step by Step Solution

1. Step 1: Write the proportion equation
   394,483.50 : 864,000 = 864,000 : x
2. Step 2: Convert to fraction form
   394,483.50/864,000 = 864,000/x
3. Step 3: Cross multiply
   394,483.50x = 864,000 × 864,000
4. Step 4: Simplify right side
   394,483.50x = 746,496,000,000
5. Step 5: Solve for x
   x = 746,496,000,000/394,483.50
6. Step 6: Final answer
   x = 1,892,337.70