Finding the Third Proportional to 1,582,886 and 3,221,666

Step by Step Solution

1. Step 1: Write the proportion equation
   1,582,886 : 3,221,666 = 3,221,666 : x
2. Step 2: Convert to fraction form
   1,582,886/3,221,666 = 3,221,666/x
3. Step 3: Cross multiply
   1,582,886x = 3,221,666 × 3,221,666
4. Step 4: Simplify right side
   1,582,886x = 10,379,131,815,556
5. Step 5: Solve for x
   x = 10,379,131,815,556/1,582,886
6. Step 6: Final answer
   x = 6,557,093.70