Finding the Third Proportional to 2,557,372 and 4,261,686

Step by Step Solution

1. Step 1: Write the proportion equation
   2,557,372 : 4,261,686 = 4,261,686 : x
2. Step 2: Convert to fraction form
   2,557,372/4,261,686 = 4,261,686/x
3. Step 3: Cross multiply
   2,557,372x = 4,261,686 × 4,261,686
4. Step 4: Simplify right side
   2,557,372x = 18,161,967,562,596
5. Step 5: Solve for x
   x = 18,161,967,562,596/2,557,372
6. Step 6: Final answer
   x = 7,101,809.03