Finding the Third Proportional to 8,815,788 and 13,622,640

Step by Step Solution

1. Step 1: Write the proportion equation
   8,815,788 : 13,622,640 = 13,622,640 : x
2. Step 2: Convert to fraction form
   8,815,788/13,622,640 = 13,622,640/x
3. Step 3: Cross multiply
   8,815,788x = 13,622,640 × 13,622,640
4. Step 4: Simplify right side
   8,815,788x = 185,576,320,569,600
5. Step 5: Solve for x
   x = 185,576,320,569,600/8,815,788
6. Step 6: Final answer
   x = 21,050,451.82