Finding the Third Proportional to 8,212,456 and 16,945,256

Step by Step Solution

1. Step 1: Write the proportion equation
   8,212,456 : 16,945,256 = 16,945,256 : x
2. Step 2: Convert to fraction form
   8,212,456/16,945,256 = 16,945,256/x
3. Step 3: Cross multiply
   8,212,456x = 16,945,256 × 16,945,256
4. Step 4: Simplify right side
   8,212,456x = 287,141,700,905,536
5. Step 5: Solve for x
   x = 287,141,700,905,536/8,212,456
6. Step 6: Final answer
   x = 34,964,169.17