Finding the Third Proportional to 2,448,600 and 5,290,644

Step by Step Solution

1. Step 1: Write the proportion equation
   2,448,600 : 5,290,644 = 5,290,644 : x
2. Step 2: Convert to fraction form
   2,448,600/5,290,644 = 5,290,644/x
3. Step 3: Cross multiply
   2,448,600x = 5,290,644 × 5,290,644
4. Step 4: Simplify right side
   2,448,600x = 27,990,913,934,736
5. Step 5: Solve for x
   x = 27,990,913,934,736/2,448,600
6. Step 6: Final answer
   x = 11,431,395.06