Finding the Third Proportional to 2,099,040 and 4,489,880

Step by Step Solution

1. Step 1: Write the proportion equation
   2,099,040 : 4,489,880 = 4,489,880 : x
2. Step 2: Convert to fraction form
   2,099,040/4,489,880 = 4,489,880/x
3. Step 3: Cross multiply
   2,099,040x = 4,489,880 × 4,489,880
4. Step 4: Simplify right side
   2,099,040x = 20,159,022,414,400
5. Step 5: Solve for x
   x = 20,159,022,414,400/2,099,040
6. Step 6: Final answer
   x = 9,603,924.85