Finding the Third Proportional to 2,431,356 and 5,239,786

Step by Step Solution

1. Step 1: Write the proportion equation
   2,431,356 : 5,239,786 = 5,239,786 : x
2. Step 2: Convert to fraction form
   2,431,356/5,239,786 = 5,239,786/x
3. Step 3: Cross multiply
   2,431,356x = 5,239,786 × 5,239,786
4. Step 4: Simplify right side
   2,431,356x = 27,455,357,325,796
5. Step 5: Solve for x
   x = 27,455,357,325,796/2,431,356
6. Step 6: Final answer
   x = 11,292,199.63