Finding the Third Proportional to 394,645.50 and 868,023

Step by Step Solution

1. Step 1: Write the proportion equation
   394,645.50 : 868,023 = 868,023 : x
2. Step 2: Convert to fraction form
   394,645.50/868,023 = 868,023/x
3. Step 3: Cross multiply
   394,645.50x = 868,023 × 868,023
4. Step 4: Simplify right side
   394,645.50x = 753,463,928,529
5. Step 5: Solve for x
   x = 753,463,928,529/394,645.50
6. Step 6: Final answer
   x = 1,909,217.08