Finding the Third Proportional to 3,914,578 and 8,598,980

Step by Step Solution

1. Step 1: Write the proportion equation
   3,914,578 : 8,598,980 = 8,598,980 : x
2. Step 2: Convert to fraction form
   3,914,578/8,598,980 = 8,598,980/x
3. Step 3: Cross multiply
   3,914,578x = 8,598,980 × 8,598,980
4. Step 4: Simplify right side
   3,914,578x = 73,942,457,040,400
5. Step 5: Solve for x
   x = 73,942,457,040,400/3,914,578
6. Step 6: Final answer
   x = 18,888,998.26