Finding the Third Proportional to 2,116,736 and 3,179,873

Step by Step Solution

1. Step 1: Write the proportion equation
   2,116,736 : 3,179,873 = 3,179,873 : x
2. Step 2: Convert to fraction form
   2,116,736/3,179,873 = 3,179,873/x
3. Step 3: Cross multiply
   2,116,736x = 3,179,873 × 3,179,873
4. Step 4: Simplify right side
   2,116,736x = 10,111,592,296,129
5. Step 5: Solve for x
   x = 10,111,592,296,129/2,116,736
6. Step 6: Final answer
   x = 4,776,973.74