Finding the Third Proportional to 1,582,718 and 3,221,372

Step by Step Solution

1. Step 1: Write the proportion equation
   1,582,718 : 3,221,372 = 3,221,372 : x
2. Step 2: Convert to fraction form
   1,582,718/3,221,372 = 3,221,372/x
3. Step 3: Cross multiply
   1,582,718x = 3,221,372 × 3,221,372
4. Step 4: Simplify right side
   1,582,718x = 10,377,237,562,384
5. Step 5: Solve for x
   x = 10,377,237,562,384/1,582,718
6. Step 6: Final answer
   x = 6,556,592.88