Finding the Third Proportional to 3,856,448 and 5,642,712

Step by Step Solution

1. Step 1: Write the proportion equation
   3,856,448 : 5,642,712 = 5,642,712 : x
2. Step 2: Convert to fraction form
   3,856,448/5,642,712 = 5,642,712/x
3. Step 3: Cross multiply
   3,856,448x = 5,642,712 × 5,642,712
4. Step 4: Simplify right side
   3,856,448x = 31,840,198,714,944
5. Step 5: Solve for x
   x = 31,840,198,714,944/3,856,448
6. Step 6: Final answer
   x = 8,256,353.70