Finding the Third Proportional to 2,218,556 and 3,170,361

Step by Step Solution

1. Step 1: Write the proportion equation
   2,218,556 : 3,170,361 = 3,170,361 : x
2. Step 2: Convert to fraction form
   2,218,556/3,170,361 = 3,170,361/x
3. Step 3: Cross multiply
   2,218,556x = 3,170,361 × 3,170,361
4. Step 4: Simplify right side
   2,218,556x = 10,051,188,870,321
5. Step 5: Solve for x
   x = 10,051,188,870,321/2,218,556
6. Step 6: Final answer
   x = 4,530,509.43