Finding the Third Proportional to 2,489,463 and 5,431,338

Step by Step Solution

1. Step 1: Write the proportion equation
   2,489,463 : 5,431,338 = 5,431,338 : x
2. Step 2: Convert to fraction form
   2,489,463/5,431,338 = 5,431,338/x
3. Step 3: Cross multiply
   2,489,463x = 5,431,338 × 5,431,338
4. Step 4: Simplify right side
   2,489,463x = 29,499,432,470,244
5. Step 5: Solve for x
   x = 29,499,432,470,244/2,489,463
6. Step 6: Final answer
   x = 11,849,717.18