Finding the Third Proportional to 2,201,987 and 3,218,011

Step by Step Solution

1. Step 1: Write the proportion equation
   2,201,987 : 3,218,011 = 3,218,011 : x
2. Step 2: Convert to fraction form
   2,201,987/3,218,011 = 3,218,011/x
3. Step 3: Cross multiply
   2,201,987x = 3,218,011 × 3,218,011
4. Step 4: Simplify right side
   2,201,987x = 10,355,594,796,121
5. Step 5: Solve for x
   x = 10,355,594,796,121/2,201,987
6. Step 6: Final answer
   x = 4,702,841.02