Finding the Third Proportional to 5,729,463 and 7,785,891

Step by Step Solution

1. Step 1: Write the proportion equation
   5,729,463 : 7,785,891 = 7,785,891 : x
2. Step 2: Convert to fraction form
   5,729,463/7,785,891 = 7,785,891/x
3. Step 3: Cross multiply
   5,729,463x = 7,785,891 × 7,785,891
4. Step 4: Simplify right side
   5,729,463x = 60,620,098,663,881
5. Step 5: Solve for x
   x = 60,620,098,663,881/5,729,463
6. Step 6: Final answer
   x = 10,580,415.42