Finding the Third Proportional to 2,368,816 and 5,209,920

Step by Step Solution

1. Step 1: Write the proportion equation
   2,368,816 : 5,209,920 = 5,209,920 : x
2. Step 2: Convert to fraction form
   2,368,816/5,209,920 = 5,209,920/x
3. Step 3: Cross multiply
   2,368,816x = 5,209,920 × 5,209,920
4. Step 4: Simplify right side
   2,368,816x = 27,143,266,406,400
5. Step 5: Solve for x
   x = 27,143,266,406,400/2,368,816
6. Step 6: Final answer
   x = 11,458,579.48