Finding the Third Proportional to 8,815,844 and 13,356,831

Step by Step Solution

1. Step 1: Write the proportion equation
   8,815,844 : 13,356,831 = 13,356,831 : x
2. Step 2: Convert to fraction form
   8,815,844/13,356,831 = 13,356,831/x
3. Step 3: Cross multiply
   8,815,844x = 13,356,831 × 13,356,831
4. Step 4: Simplify right side
   8,815,844x = 178,404,934,362,561
5. Step 5: Solve for x
   x = 178,404,934,362,561/8,815,844
6. Step 6: Final answer
   x = 20,236,852.46