Finding the Third Proportional to 2,116,783 and 3,179,939

Step by Step Solution

1. Step 1: Write the proportion equation
   2,116,783 : 3,179,939 = 3,179,939 : x
2. Step 2: Convert to fraction form
   2,116,783/3,179,939 = 3,179,939/x
3. Step 3: Cross multiply
   2,116,783x = 3,179,939 × 3,179,939
4. Step 4: Simplify right side
   2,116,783x = 10,112,012,043,721
5. Step 5: Solve for x
   x = 10,112,012,043,721/2,116,783
6. Step 6: Final answer
   x = 4,777,065.97