Finding the Third Proportional to 2,100,458 and 3,258,691

Step by Step Solution

1. Step 1: Write the proportion equation
   2,100,458 : 3,258,691 = 3,258,691 : x
2. Step 2: Convert to fraction form
   2,100,458/3,258,691 = 3,258,691/x
3. Step 3: Cross multiply
   2,100,458x = 3,258,691 × 3,258,691
4. Step 4: Simplify right side
   2,100,458x = 10,619,067,033,481
5. Step 5: Solve for x
   x = 10,619,067,033,481/2,100,458
6. Step 6: Final answer
   x = 5,055,595.99