Finding the Third Proportional to 8,619,365 and 12,854,302

Step by Step Solution

1. Step 1: Write the proportion equation
   8,619,365 : 12,854,302 = 12,854,302 : x
2. Step 2: Convert to fraction form
   8,619,365/12,854,302 = 12,854,302/x
3. Step 3: Cross multiply
   8,619,365x = 12,854,302 × 12,854,302
4. Step 4: Simplify right side
   8,619,365x = 165,233,079,907,204
5. Step 5: Solve for x
   x = 165,233,079,907,204/8,619,365
6. Step 6: Final answer
   x = 19,169,982.93