Finding the Third Proportional to 2,447,420 and 5,249,128

Step by Step Solution

1. Step 1: Write the proportion equation
   2,447,420 : 5,249,128 = 5,249,128 : x
2. Step 2: Convert to fraction form
   2,447,420/5,249,128 = 5,249,128/x
3. Step 3: Cross multiply
   2,447,420x = 5,249,128 × 5,249,128
4. Step 4: Simplify right side
   2,447,420x = 27,553,344,760,384
5. Step 5: Solve for x
   x = 27,553,344,760,384/2,447,420
6. Step 6: Final answer
   x = 11,258,118.66