Finding the Third Proportional to 1,638,536 and 3,355,804

Step by Step Solution

1. Step 1: Write the proportion equation
   1,638,536 : 3,355,804 = 3,355,804 : x
2. Step 2: Convert to fraction form
   1,638,536/3,355,804 = 3,355,804/x
3. Step 3: Cross multiply
   1,638,536x = 3,355,804 × 3,355,804
4. Step 4: Simplify right side
   1,638,536x = 11,261,420,486,416
5. Step 5: Solve for x
   x = 11,261,420,486,416/1,638,536
6. Step 6: Final answer
   x = 6,872,855.09