Finding the Third Proportional to 2,658,830 and 5,798,860

Step by Step Solution

1. Step 1: Write the proportion equation
   2,658,830 : 5,798,860 = 5,798,860 : x
2. Step 2: Convert to fraction form
   2,658,830/5,798,860 = 5,798,860/x
3. Step 3: Cross multiply
   2,658,830x = 5,798,860 × 5,798,860
4. Step 4: Simplify right side
   2,658,830x = 33,626,777,299,600
5. Step 5: Solve for x
   x = 33,626,777,299,600/2,658,830
6. Step 6: Final answer
   x = 12,647,208.47