Finding the Third Proportional to 11,945,456 and 18,446,256

Step by Step Solution

1. Step 1: Write the proportion equation
   11,945,456 : 18,446,256 = 18,446,256 : x
2. Step 2: Convert to fraction form
   11,945,456/18,446,256 = 18,446,256/x
3. Step 3: Cross multiply
   11,945,456x = 18,446,256 × 18,446,256
4. Step 4: Simplify right side
   11,945,456x = 340,264,360,417,536
5. Step 5: Solve for x
   x = 340,264,360,417,536/11,945,456
6. Step 6: Final answer
   x = 28,484,836.44