Finding the Third Proportional to 5,278,896 and 8,160,936

Step by Step Solution

1. Step 1: Write the proportion equation
   5,278,896 : 8,160,936 = 8,160,936 : x
2. Step 2: Convert to fraction form
   5,278,896/8,160,936 = 8,160,936/x
3. Step 3: Cross multiply
   5,278,896x = 8,160,936 × 8,160,936
4. Step 4: Simplify right side
   5,278,896x = 66,600,876,396,096
5. Step 5: Solve for x
   x = 66,600,876,396,096/5,278,896
6. Step 6: Final answer
   x = 12,616,440.33