Finding the Third Proportional to 2,406,885 and 5,286,189

Step by Step Solution

1. Step 1: Write the proportion equation
   2,406,885 : 5,286,189 = 5,286,189 : x
2. Step 2: Convert to fraction form
   2,406,885/5,286,189 = 5,286,189/x
3. Step 3: Cross multiply
   2,406,885x = 5,286,189 × 5,286,189
4. Step 4: Simplify right side
   2,406,885x = 27,943,794,143,721
5. Step 5: Solve for x
   x = 27,943,794,143,721/2,406,885
6. Step 6: Final answer
   x = 11,609,941.54