Finding the Third Proportional to 863,766 and 1,782,864

Step by Step Solution

1. Step 1: Write the proportion equation
   863,766 : 1,782,864 = 1,782,864 : x
2. Step 2: Convert to fraction form
   863,766/1,782,864 = 1,782,864/x
3. Step 3: Cross multiply
   863,766x = 1,782,864 × 1,782,864
4. Step 4: Simplify right side
   863,766x = 3,178,604,042,496
5. Step 5: Solve for x
   x = 3,178,604,042,496/863,766
6. Step 6: Final answer
   x = 3,679,936.51