Finding the Third Proportional to 1,338,858 and 2,943,403

Step by Step Solution

1. Step 1: Write the proportion equation
   1,338,858 : 2,943,403 = 2,943,403 : x
2. Step 2: Convert to fraction form
   1,338,858/2,943,403 = 2,943,403/x
3. Step 3: Cross multiply
   1,338,858x = 2,943,403 × 2,943,403
4. Step 4: Simplify right side
   1,338,858x = 8,663,621,220,409
5. Step 5: Solve for x
   x = 8,663,621,220,409/1,338,858
6. Step 6: Final answer
   x = 6,470,903.73