Finding the Third Proportional to 2,479,790 and 5,257,174

Step by Step Solution

1. Step 1: Write the proportion equation
   2,479,790 : 5,257,174 = 5,257,174 : x
2. Step 2: Convert to fraction form
   2,479,790/5,257,174 = 5,257,174/x
3. Step 3: Cross multiply
   2,479,790x = 5,257,174 × 5,257,174
4. Step 4: Simplify right side
   2,479,790x = 27,637,878,466,276
5. Step 5: Solve for x
   x = 27,637,878,466,276/2,479,790
6. Step 6: Final answer
   x = 11,145,249.58