Finding the Third Proportional to 394,590 and 852,238.50

Step by Step Solution

1. Step 1: Write the proportion equation
   394,590 : 852,238.50 = 852,238.50 : x
2. Step 2: Convert to fraction form
   394,590/852,238.50 = 852,238.50/x
3. Step 3: Cross multiply
   394,590x = 852,238.50 × 852,238.50
4. Step 4: Simplify right side
   394,590x = 726,310,460,882.25
5. Step 5: Solve for x
   x = 726,310,460,882.25/394,590
6. Step 6: Final answer
   x = 1,840,671.23