Finding the Third Proportional to 2,505,212 and 5,489,222

Step by Step Solution

1. Step 1: Write the proportion equation
   2,505,212 : 5,489,222 = 5,489,222 : x
2. Step 2: Convert to fraction form
   2,505,212/5,489,222 = 5,489,222/x
3. Step 3: Cross multiply
   2,505,212x = 5,489,222 × 5,489,222
4. Step 4: Simplify right side
   2,505,212x = 30,131,558,165,284
5. Step 5: Solve for x
   x = 30,131,558,165,284/2,505,212
6. Step 6: Final answer
   x = 12,027,548.23