Finding the Third Proportional to 8,081,686 and 12,547,546

Step by Step Solution

1. Step 1: Write the proportion equation
   8,081,686 : 12,547,546 = 12,547,546 : x
2. Step 2: Convert to fraction form
   8,081,686/12,547,546 = 12,547,546/x
3. Step 3: Cross multiply
   8,081,686x = 12,547,546 × 12,547,546
4. Step 4: Simplify right side
   8,081,686x = 157,440,910,622,116
5. Step 5: Solve for x
   x = 157,440,910,622,116/8,081,686
6. Step 6: Final answer
   x = 19,481,196.20