Finding the Third Proportional to 2,573,920 and 3,887,257

Step by Step Solution

1. Step 1: Write the proportion equation
   2,573,920 : 3,887,257 = 3,887,257 : x
2. Step 2: Convert to fraction form
   2,573,920/3,887,257 = 3,887,257/x
3. Step 3: Cross multiply
   2,573,920x = 3,887,257 × 3,887,257
4. Step 4: Simplify right side
   2,573,920x = 15,110,766,984,049
5. Step 5: Solve for x
   x = 15,110,766,984,049/2,573,920
6. Step 6: Final answer
   x = 5,870,721.31