Finding the Third Proportional to 5,383,603 and 8,274,970

Step by Step Solution

1. Step 1: Write the proportion equation
   5,383,603 : 8,274,970 = 8,274,970 : x
2. Step 2: Convert to fraction form
   5,383,603/8,274,970 = 8,274,970/x
3. Step 3: Cross multiply
   5,383,603x = 8,274,970 × 8,274,970
4. Step 4: Simplify right side
   5,383,603x = 68,475,128,500,900
5. Step 5: Solve for x
   x = 68,475,128,500,900/5,383,603
6. Step 6: Final answer
   x = 12,719,200.97