Finding the Third Proportional to 2,619,666 and 5,637,717

Step by Step Solution

1. Step 1: Write the proportion equation
   2,619,666 : 5,637,717 = 5,637,717 : x
2. Step 2: Convert to fraction form
   2,619,666/5,637,717 = 5,637,717/x
3. Step 3: Cross multiply
   2,619,666x = 5,637,717 × 5,637,717
4. Step 4: Simplify right side
   2,619,666x = 31,783,852,972,089
5. Step 5: Solve for x
   x = 31,783,852,972,089/2,619,666
6. Step 6: Final answer
   x = 12,132,788.29