Finding the Third Proportional to 3,447,478 and 5,554,805

Step by Step Solution

1. Step 1: Write the proportion equation
   3,447,478 : 5,554,805 = 5,554,805 : x
2. Step 2: Convert to fraction form
   3,447,478/5,554,805 = 5,554,805/x
3. Step 3: Cross multiply
   3,447,478x = 5,554,805 × 5,554,805
4. Step 4: Simplify right side
   3,447,478x = 30,855,858,588,025
5. Step 5: Solve for x
   x = 30,855,858,588,025/3,447,478
6. Step 6: Final answer
   x = 8,950,269.90