Finding the Third Proportional to 394,599 and 852,256.50

Step by Step Solution

1. Step 1: Write the proportion equation
   394,599 : 852,256.50 = 852,256.50 : x
2. Step 2: Convert to fraction form
   394,599/852,256.50 = 852,256.50/x
3. Step 3: Cross multiply
   394,599x = 852,256.50 × 852,256.50
4. Step 4: Simplify right side
   394,599x = 726,341,141,792.25
5. Step 5: Solve for x
   x = 726,341,141,792.25/394,599
6. Step 6: Final answer
   x = 1,840,707.00