Finding the Third Proportional to 5,238,456 and 7,825,422

Step by Step Solution

1. Step 1: Write the proportion equation
   5,238,456 : 7,825,422 = 7,825,422 : x
2. Step 2: Convert to fraction form
   5,238,456/7,825,422 = 7,825,422/x
3. Step 3: Cross multiply
   5,238,456x = 7,825,422 × 7,825,422
4. Step 4: Simplify right side
   5,238,456x = 61,237,229,478,084
5. Step 5: Solve for x
   x = 61,237,229,478,084/5,238,456
6. Step 6: Final answer
   x = 11,689,938.69