Finding the Third Proportional to 4,214,268 and 9,102,456

Step by Step Solution

1. Step 1: Write the proportion equation
   4,214,268 : 9,102,456 = 9,102,456 : x
2. Step 2: Convert to fraction form
   4,214,268/9,102,456 = 9,102,456/x
3. Step 3: Cross multiply
   4,214,268x = 9,102,456 × 9,102,456
4. Step 4: Simplify right side
   4,214,268x = 82,854,705,231,936
5. Step 5: Solve for x
   x = 82,854,705,231,936/4,214,268
6. Step 6: Final answer
   x = 19,660,521.17