Finding the Third Proportional to 2,706,678 and 5,636,538

Step by Step Solution

1. Step 1: Write the proportion equation
   2,706,678 : 5,636,538 = 5,636,538 : x
2. Step 2: Convert to fraction form
   2,706,678/5,636,538 = 5,636,538/x
3. Step 3: Cross multiply
   2,706,678x = 5,636,538 × 5,636,538
4. Step 4: Simplify right side
   2,706,678x = 31,770,560,625,444
5. Step 5: Solve for x
   x = 31,770,560,625,444/2,706,678
6. Step 6: Final answer
   x = 11,737,842.71