Finding the Third Proportional to 3,968,768 and 8,414,424

Step by Step Solution

1. Step 1: Write the proportion equation
   3,968,768 : 8,414,424 = 8,414,424 : x
2. Step 2: Convert to fraction form
   3,968,768/8,414,424 = 8,414,424/x
3. Step 3: Cross multiply
   3,968,768x = 8,414,424 × 8,414,424
4. Step 4: Simplify right side
   3,968,768x = 70,802,531,251,776
5. Step 5: Solve for x
   x = 70,802,531,251,776/3,968,768
6. Step 6: Final answer
   x = 17,839,926.96