Finding the Third Proportional to 1,287,198 and 2,773,740

Step by Step Solution

1. Step 1: Write the proportion equation
   1,287,198 : 2,773,740 = 2,773,740 : x
2. Step 2: Convert to fraction form
   1,287,198/2,773,740 = 2,773,740/x
3. Step 3: Cross multiply
   1,287,198x = 2,773,740 × 2,773,740
4. Step 4: Simplify right side
   1,287,198x = 7,693,633,587,600
5. Step 5: Solve for x
   x = 7,693,633,587,600/1,287,198
6. Step 6: Final answer
   x = 5,977,039.73