Finding the Third Proportional to 394,500 and 862,818

Step by Step Solution

1. Step 1: Write the proportion equation
   394,500 : 862,818 = 862,818 : x
2. Step 2: Convert to fraction form
   394,500/862,818 = 862,818/x
3. Step 3: Cross multiply
   394,500x = 862,818 × 862,818
4. Step 4: Simplify right side
   394,500x = 744,454,901,124
5. Step 5: Solve for x
   x = 744,454,901,124/394,500
6. Step 6: Final answer
   x = 1,887,084.67