Finding the Third Proportional to 4,885,826 and 10,420,852

Step by Step Solution

1. Step 1: Write the proportion equation
   4,885,826 : 10,420,852 = 10,420,852 : x
2. Step 2: Convert to fraction form
   4,885,826/10,420,852 = 10,420,852/x
3. Step 3: Cross multiply
   4,885,826x = 10,420,852 × 10,420,852
4. Step 4: Simplify right side
   4,885,826x = 108,594,156,405,904
5. Step 5: Solve for x
   x = 108,594,156,405,904/4,885,826
6. Step 6: Final answer
   x = 22,226,365.90