Finding the Third Proportional to 2,109,399 and 4,368,336

Step by Step Solution

1. Step 1: Write the proportion equation
   2,109,399 : 4,368,336 = 4,368,336 : x
2. Step 2: Convert to fraction form
   2,109,399/4,368,336 = 4,368,336/x
3. Step 3: Cross multiply
   2,109,399x = 4,368,336 × 4,368,336
4. Step 4: Simplify right side
   2,109,399x = 19,082,359,408,896
5. Step 5: Solve for x
   x = 19,082,359,408,896/2,109,399
6. Step 6: Final answer
   x = 9,046,348.94