Finding the Third Proportional to 8,815,770 and 13,356,738

Step by Step Solution

1. Step 1: Write the proportion equation
   8,815,770 : 13,356,738 = 13,356,738 : x
2. Step 2: Convert to fraction form
   8,815,770/13,356,738 = 13,356,738/x
3. Step 3: Cross multiply
   8,815,770x = 13,356,738 × 13,356,738
4. Step 4: Simplify right side
   8,815,770x = 178,402,450,000,644
5. Step 5: Solve for x
   x = 178,402,450,000,644/8,815,770
6. Step 6: Final answer
   x = 20,236,740.52