Finding the Third Proportional to 2,602,640 and 3,888,651

Step by Step Solution

1. Step 1: Write the proportion equation
   2,602,640 : 3,888,651 = 3,888,651 : x
2. Step 2: Convert to fraction form
   2,602,640/3,888,651 = 3,888,651/x
3. Step 3: Cross multiply
   2,602,640x = 3,888,651 × 3,888,651
4. Step 4: Simplify right side
   2,602,640x = 15,121,606,599,801
5. Step 5: Solve for x
   x = 15,121,606,599,801/2,602,640
6. Step 6: Final answer
   x = 5,810,103.05