Finding the Third Proportional to 2,602,686 and 3,888,709

Step by Step Solution

1. Step 1: Write the proportion equation
   2,602,686 : 3,888,709 = 3,888,709 : x
2. Step 2: Convert to fraction form
   2,602,686/3,888,709 = 3,888,709/x
3. Step 3: Cross multiply
   2,602,686x = 3,888,709 × 3,888,709
4. Step 4: Simplify right side
   2,602,686x = 15,122,057,686,681
5. Step 5: Solve for x
   x = 15,122,057,686,681/2,602,686
6. Step 6: Final answer
   x = 5,810,173.68