Finding the Third Proportional to 2,685,666 and 4,164,642

Step by Step Solution

1. Step 1: Write the proportion equation
   2,685,666 : 4,164,642 = 4,164,642 : x
2. Step 2: Convert to fraction form
   2,685,666/4,164,642 = 4,164,642/x
3. Step 3: Cross multiply
   2,685,666x = 4,164,642 × 4,164,642
4. Step 4: Simplify right side
   2,685,666x = 17,344,242,988,164
5. Step 5: Solve for x
   x = 17,344,242,988,164/2,685,666
6. Step 6: Final answer
   x = 6,458,078.92