Finding the Third Proportional to 5,514,638 and 12,117,788

Step by Step Solution

1. Step 1: Write the proportion equation
   5,514,638 : 12,117,788 = 12,117,788 : x
2. Step 2: Convert to fraction form
   5,514,638/12,117,788 = 12,117,788/x
3. Step 3: Cross multiply
   5,514,638x = 12,117,788 × 12,117,788
4. Step 4: Simplify right side
   5,514,638x = 146,840,786,012,944
5. Step 5: Solve for x
   x = 146,840,786,012,944/5,514,638
6. Step 6: Final answer
   x = 26,627,456.96