Finding the Third Proportional to 5,408,731 and 8,363,676

Step by Step Solution

1. Step 1: Write the proportion equation
   5,408,731 : 8,363,676 = 8,363,676 : x
2. Step 2: Convert to fraction form
   5,408,731/8,363,676 = 8,363,676/x
3. Step 3: Cross multiply
   5,408,731x = 8,363,676 × 8,363,676
4. Step 4: Simplify right side
   5,408,731x = 69,951,076,232,976
5. Step 5: Solve for x
   x = 69,951,076,232,976/5,408,731
6. Step 6: Final answer
   x = 12,932,992.27