Finding the Third Proportional to 1,212,504 and 1,811,268

Step by Step Solution

1. Step 1: Write the proportion equation
   1,212,504 : 1,811,268 = 1,811,268 : x
2. Step 2: Convert to fraction form
   1,212,504/1,811,268 = 1,811,268/x
3. Step 3: Cross multiply
   1,212,504x = 1,811,268 × 1,811,268
4. Step 4: Simplify right side
   1,212,504x = 3,280,691,767,824
5. Step 5: Solve for x
   x = 3,280,691,767,824/1,212,504
6. Step 6: Final answer
   x = 2,705,716.24