Finding the Third Proportional to 394,470 and 864,022.50

Step by Step Solution

1. Step 1: Write the proportion equation
   394,470 : 864,022.50 = 864,022.50 : x
2. Step 2: Convert to fraction form
   394,470/864,022.50 = 864,022.50/x
3. Step 3: Cross multiply
   394,470x = 864,022.50 × 864,022.50
4. Step 4: Simplify right side
   394,470x = 746,534,880,506.25
5. Step 5: Solve for x
   x = 746,534,880,506.25/394,470
6. Step 6: Final answer
   x = 1,892,501.03