Finding the Third Proportional to 12,845,856 and 18,786,456

Step by Step Solution

1. Step 1: Write the proportion equation
   12,845,856 : 18,786,456 = 18,786,456 : x
2. Step 2: Convert to fraction form
   12,845,856/18,786,456 = 18,786,456/x
3. Step 3: Cross multiply
   12,845,856x = 18,786,456 × 18,786,456
4. Step 4: Simplify right side
   12,845,856x = 352,930,929,039,936
5. Step 5: Solve for x
   x = 352,930,929,039,936/12,845,856
6. Step 6: Final answer
   x = 27,474,302.14