Finding the Third Proportional to 3,968,776 and 8,414,440

Step by Step Solution

1. Step 1: Write the proportion equation
   3,968,776 : 8,414,440 = 8,414,440 : x
2. Step 2: Convert to fraction form
   3,968,776/8,414,440 = 8,414,440/x
3. Step 3: Cross multiply
   3,968,776x = 8,414,440 × 8,414,440
4. Step 4: Simplify right side
   3,968,776x = 70,802,800,513,600
5. Step 5: Solve for x
   x = 70,802,800,513,600/3,968,776
6. Step 6: Final answer
   x = 17,839,958.85