Finding the Third Proportional to 2,116,787 and 3,179,945

Step by Step Solution

1. Step 1: Write the proportion equation
   2,116,787 : 3,179,945 = 3,179,945 : x
2. Step 2: Convert to fraction form
   2,116,787/3,179,945 = 3,179,945/x
3. Step 3: Cross multiply
   2,116,787x = 3,179,945 × 3,179,945
4. Step 4: Simplify right side
   2,116,787x = 10,112,050,203,025
5. Step 5: Solve for x
   x = 10,112,050,203,025/2,116,787
6. Step 6: Final answer
   x = 4,777,074.97