Finding the Third Proportional to 4,204,386 and 9,222,660

Step by Step Solution

1. Step 1: Write the proportion equation
   4,204,386 : 9,222,660 = 9,222,660 : x
2. Step 2: Convert to fraction form
   4,204,386/9,222,660 = 9,222,660/x
3. Step 3: Cross multiply
   4,204,386x = 9,222,660 × 9,222,660
4. Step 4: Simplify right side
   4,204,386x = 85,057,457,475,600
5. Step 5: Solve for x
   x = 85,057,457,475,600/4,204,386
6. Step 6: Final answer
   x = 20,230,649.01