Finding the Third Proportional to 8,274,917 and 12,845,406

Step by Step Solution

1. Step 1: Write the proportion equation
   8,274,917 : 12,845,406 = 12,845,406 : x
2. Step 2: Convert to fraction form
   8,274,917/12,845,406 = 12,845,406/x
3. Step 3: Cross multiply
   8,274,917x = 12,845,406 × 12,845,406
4. Step 4: Simplify right side
   8,274,917x = 165,004,455,304,836
5. Step 5: Solve for x
   x = 165,004,455,304,836/8,274,917
6. Step 6: Final answer
   x = 19,940,315.45