Finding the Third Proportional to 2,545,459 and 5,489,229

Step by Step Solution

1. Step 1: Write the proportion equation
   2,545,459 : 5,489,229 = 5,489,229 : x
2. Step 2: Convert to fraction form
   2,545,459/5,489,229 = 5,489,229/x
3. Step 3: Cross multiply
   2,545,459x = 5,489,229 × 5,489,229
4. Step 4: Simplify right side
   2,545,459x = 30,131,635,014,441
5. Step 5: Solve for x
   x = 30,131,635,014,441/2,545,459
6. Step 6: Final answer
   x = 11,837,407.33