Finding the Third Proportional to 3,479,764 and 7,665,896

Step by Step Solution

1. Step 1: Write the proportion equation
   3,479,764 : 7,665,896 = 7,665,896 : x
2. Step 2: Convert to fraction form
   3,479,764/7,665,896 = 7,665,896/x
3. Step 3: Cross multiply
   3,479,764x = 7,665,896 × 7,665,896
4. Step 4: Simplify right side
   3,479,764x = 58,765,961,482,816
5. Step 5: Solve for x
   x = 58,765,961,482,816/3,479,764
6. Step 6: Final answer
   x = 16,887,915.81