Finding the Third Proportional to 5,715,218 and 7,761,891

Step by Step Solution

1. Step 1: Write the proportion equation
   5,715,218 : 7,761,891 = 7,761,891 : x
2. Step 2: Convert to fraction form
   5,715,218/7,761,891 = 7,761,891/x
3. Step 3: Cross multiply
   5,715,218x = 7,761,891 × 7,761,891
4. Step 4: Simplify right side
   5,715,218x = 60,246,951,895,881
5. Step 5: Solve for x
   x = 60,246,951,895,881/5,715,218
6. Step 6: Final answer
   x = 10,541,496.74