Finding the Third Proportional to 4,321,212 and 9,419,976

Step by Step Solution

1. Step 1: Write the proportion equation
   4,321,212 : 9,419,976 = 9,419,976 : x
2. Step 2: Convert to fraction form
   4,321,212/9,419,976 = 9,419,976/x
3. Step 3: Cross multiply
   4,321,212x = 9,419,976 × 9,419,976
4. Step 4: Simplify right side
   4,321,212x = 88,735,947,840,576
5. Step 5: Solve for x
   x = 88,735,947,840,576/4,321,212
6. Step 6: Final answer
   x = 20,534,967.47