Finding the Third Proportional to 3,668,928 and 5,558,880

Step by Step Solution

1. Step 1: Write the proportion equation
   3,668,928 : 5,558,880 = 5,558,880 : x
2. Step 2: Convert to fraction form
   3,668,928/5,558,880 = 5,558,880/x
3. Step 3: Cross multiply
   3,668,928x = 5,558,880 × 5,558,880
4. Step 4: Simplify right side
   3,668,928x = 30,901,146,854,400
5. Step 5: Solve for x
   x = 30,901,146,854,400/3,668,928
6. Step 6: Final answer
   x = 8,422,391.19