Finding the Third Proportional to 8,619,576 and 12,854,628

Step by Step Solution

1. Step 1: Write the proportion equation
   8,619,576 : 12,854,628 = 12,854,628 : x
2. Step 2: Convert to fraction form
   8,619,576/12,854,628 = 12,854,628/x
3. Step 3: Cross multiply
   8,619,576x = 12,854,628 × 12,854,628
4. Step 4: Simplify right side
   8,619,576x = 165,241,461,018,384
5. Step 5: Solve for x
   x = 165,241,461,018,384/8,619,576
6. Step 6: Final answer
   x = 19,170,486.00