Finding the Third Proportional to 3,668,868 and 5,558,706

Step by Step Solution

1. Step 1: Write the proportion equation
   3,668,868 : 5,558,706 = 5,558,706 : x
2. Step 2: Convert to fraction form
   3,668,868/5,558,706 = 5,558,706/x
3. Step 3: Cross multiply
   3,668,868x = 5,558,706 × 5,558,706
4. Step 4: Simplify right side
   3,668,868x = 30,899,212,394,436
5. Step 5: Solve for x
   x = 30,899,212,394,436/3,668,868
6. Step 6: Final answer
   x = 8,422,001.66