Finding the Third Proportional to 1,155,816 and 2,489,508

Step by Step Solution

1. Step 1: Write the proportion equation
   1,155,816 : 2,489,508 = 2,489,508 : x
2. Step 2: Convert to fraction form
   1,155,816/2,489,508 = 2,489,508/x
3. Step 3: Cross multiply
   1,155,816x = 2,489,508 × 2,489,508
4. Step 4: Simplify right side
   1,155,816x = 6,197,650,082,064
5. Step 5: Solve for x
   x = 6,197,650,082,064/1,155,816
6. Step 6: Final answer
   x = 5,362,142.49