Finding the Third Proportional to 1,311,256 and 2,860,816

Step by Step Solution

1. Step 1: Write the proportion equation
   1,311,256 : 2,860,816 = 2,860,816 : x
2. Step 2: Convert to fraction form
   1,311,256/2,860,816 = 2,860,816/x
3. Step 3: Cross multiply
   1,311,256x = 2,860,816 × 2,860,816
4. Step 4: Simplify right side
   1,311,256x = 8,184,268,185,856
5. Step 5: Solve for x
   x = 8,184,268,185,856/1,311,256
6. Step 6: Final answer
   x = 6,241,548.70