Finding the Third Proportional to 395,886 and 863,223.75

Step by Step Solution

1. Step 1: Write the proportion equation
   395,886 : 863,223.75 = 863,223.75 : x
2. Step 2: Convert to fraction form
   395,886/863,223.75 = 863,223.75/x
3. Step 3: Cross multiply
   395,886x = 863,223.75 × 863,223.75
4. Step 4: Simplify right side
   395,886x = 745,155,242,564.06
5. Step 5: Solve for x
   x = 745,155,242,564.06/395,886
6. Step 6: Final answer
   x = 1,882,247.02