Finding the Third Proportional to 2,428,220 and 5,245,443

Step by Step Solution

1. Step 1: Write the proportion equation
   2,428,220 : 5,245,443 = 5,245,443 : x
2. Step 2: Convert to fraction form
   2,428,220/5,245,443 = 5,245,443/x
3. Step 3: Cross multiply
   2,428,220x = 5,245,443 × 5,245,443
4. Step 4: Simplify right side
   2,428,220x = 27,514,672,266,249
5. Step 5: Solve for x
   x = 27,514,672,266,249/2,428,220
6. Step 6: Final answer
   x = 11,331,210.63