Finding the Third Proportional to 857,804 and 1,856,827

Step by Step Solution

1. Step 1: Write the proportion equation
   857,804 : 1,856,827 = 1,856,827 : x
2. Step 2: Convert to fraction form
   857,804/1,856,827 = 1,856,827/x
3. Step 3: Cross multiply
   857,804x = 1,856,827 × 1,856,827
4. Step 4: Simplify right side
   857,804x = 3,447,806,507,929
5. Step 5: Solve for x
   x = 3,447,806,507,929/857,804
6. Step 6: Final answer
   x = 4,019,340.67