Finding the Third Proportional to 1,299,842 and 2,805,198

Step by Step Solution

1. Step 1: Write the proportion equation
   1,299,842 : 2,805,198 = 2,805,198 : x
2. Step 2: Convert to fraction form
   1,299,842/2,805,198 = 2,805,198/x
3. Step 3: Cross multiply
   1,299,842x = 2,805,198 × 2,805,198
4. Step 4: Simplify right side
   1,299,842x = 7,869,135,819,204
5. Step 5: Solve for x
   x = 7,869,135,819,204/1,299,842
6. Step 6: Final answer
   x = 6,053,917.18