Finding the Third Proportional to 394,574.25 and 869,581.50

Step by Step Solution

1. Step 1: Write the proportion equation
   394,574.25 : 869,581.50 = 869,581.50 : x
2. Step 2: Convert to fraction form
   394,574.25/869,581.50 = 869,581.50/x
3. Step 3: Cross multiply
   394,574.25x = 869,581.50 × 869,581.50
4. Step 4: Simplify right side
   394,574.25x = 756,171,985,142.25
5. Step 5: Solve for x
   x = 756,171,985,142.25/394,574.25
6. Step 6: Final answer
   x = 1,916,425.07