Finding the Third Proportional to 5,383,587 and 8,274,945

Step by Step Solution

1. Step 1: Write the proportion equation
   5,383,587 : 8,274,945 = 8,274,945 : x
2. Step 2: Convert to fraction form
   5,383,587/8,274,945 = 8,274,945/x
3. Step 3: Cross multiply
   5,383,587x = 8,274,945 × 8,274,945
4. Step 4: Simplify right side
   5,383,587x = 68,474,714,753,025
5. Step 5: Solve for x
   x = 68,474,714,753,025/5,383,587
6. Step 6: Final answer
   x = 12,719,161.92