Finding the Third Proportional to 395,256 and 878,947.50

Step by Step Solution

1. Step 1: Write the proportion equation
   395,256 : 878,947.50 = 878,947.50 : x
2. Step 2: Convert to fraction form
   395,256/878,947.50 = 878,947.50/x
3. Step 3: Cross multiply
   395,256x = 878,947.50 × 878,947.50
4. Step 4: Simplify right side
   395,256x = 772,548,707,756.25
5. Step 5: Solve for x
   x = 772,548,707,756.25/395,256
6. Step 6: Final answer
   x = 1,954,552.77