Finding the Third Proportional to 3,561,876 and 5,517,261

Step by Step Solution

1. Step 1: Write the proportion equation
   3,561,876 : 5,517,261 = 5,517,261 : x
2. Step 2: Convert to fraction form
   3,561,876/5,517,261 = 5,517,261/x
3. Step 3: Cross multiply
   3,561,876x = 5,517,261 × 5,517,261
4. Step 4: Simplify right side
   3,561,876x = 30,440,168,942,121
5. Step 5: Solve for x
   x = 30,440,168,942,121/3,561,876
6. Step 6: Final answer
   x = 8,546,105.74