Finding the Third Proportional to 8,366,846 and 12,928,656

Step by Step Solution

1. Step 1: Write the proportion equation
   8,366,846 : 12,928,656 = 12,928,656 : x
2. Step 2: Convert to fraction form
   8,366,846/12,928,656 = 12,928,656/x
3. Step 3: Cross multiply
   8,366,846x = 12,928,656 × 12,928,656
4. Step 4: Simplify right side
   8,366,846x = 167,150,145,966,336
5. Step 5: Solve for x
   x = 167,150,145,966,336/8,366,846
6. Step 6: Final answer
   x = 19,977,676.89