Finding the Third Proportional to 825,638 and 1,818,883

Step by Step Solution

1. Step 1: Write the proportion equation
   825,638 : 1,818,883 = 1,818,883 : x
2. Step 2: Convert to fraction form
   825,638/1,818,883 = 1,818,883/x
3. Step 3: Cross multiply
   825,638x = 1,818,883 × 1,818,883
4. Step 4: Simplify right side
   825,638x = 3,308,335,367,689
5. Step 5: Solve for x
   x = 3,308,335,367,689/825,638
6. Step 6: Final answer
   x = 4,007,004.73