Finding the Third Proportional to 865,218 and 1,863,546

Step by Step Solution

1. Step 1: Write the proportion equation
   865,218 : 1,863,546 = 1,863,546 : x
2. Step 2: Convert to fraction form
   865,218/1,863,546 = 1,863,546/x
3. Step 3: Cross multiply
   865,218x = 1,863,546 × 1,863,546
4. Step 4: Simplify right side
   865,218x = 3,472,803,694,116
5. Step 5: Solve for x
   x = 3,472,803,694,116/865,218
6. Step 6: Final answer
   x = 4,013,790.39