Finding the Third Proportional to 4,204,388 and 9,222,664

Step by Step Solution

1. Step 1: Write the proportion equation
   4,204,388 : 9,222,664 = 9,222,664 : x
2. Step 2: Convert to fraction form
   4,204,388/9,222,664 = 9,222,664/x
3. Step 3: Cross multiply
   4,204,388x = 9,222,664 × 9,222,664
4. Step 4: Simplify right side
   4,204,388x = 85,057,531,256,896
5. Step 5: Solve for x
   x = 85,057,531,256,896/4,204,388
6. Step 6: Final answer
   x = 20,230,656.94