Finding the Third Proportional to 1,245,636 and 2,691,018

Step by Step Solution

1. Step 1: Write the proportion equation
   1,245,636 : 2,691,018 = 2,691,018 : x
2. Step 2: Convert to fraction form
   1,245,636/2,691,018 = 2,691,018/x
3. Step 3: Cross multiply
   1,245,636x = 2,691,018 × 2,691,018
4. Step 4: Simplify right side
   1,245,636x = 7,241,577,876,324
5. Step 5: Solve for x
   x = 7,241,577,876,324/1,245,636
6. Step 6: Final answer
   x = 5,813,558.60