Finding the Third Proportional to 1,069,810 and 2,188,804

Step by Step Solution

1. Step 1: Write the proportion equation
   1,069,810 : 2,188,804 = 2,188,804 : x
2. Step 2: Convert to fraction form
   1,069,810/2,188,804 = 2,188,804/x
3. Step 3: Cross multiply
   1,069,810x = 2,188,804 × 2,188,804
4. Step 4: Simplify right side
   1,069,810x = 4,790,862,950,416
5. Step 5: Solve for x
   x = 4,790,862,950,416/1,069,810
6. Step 6: Final answer
   x = 4,478,237.21