Finding the Third Proportional to 1,904,421 and 3,966,666

Step by Step Solution

1. Step 1: Write the proportion equation
   1,904,421 : 3,966,666 = 3,966,666 : x
2. Step 2: Convert to fraction form
   1,904,421/3,966,666 = 3,966,666/x
3. Step 3: Cross multiply
   1,904,421x = 3,966,666 × 3,966,666
4. Step 4: Simplify right side
   1,904,421x = 15,734,439,155,556
5. Step 5: Solve for x
   x = 15,734,439,155,556/1,904,421
6. Step 6: Final answer
   x = 8,262,059.26