Finding the Third Proportional to 11,726,736 and 17,938,872

Step by Step Solution

1. Step 1: Write the proportion equation
   11,726,736 : 17,938,872 = 17,938,872 : x
2. Step 2: Convert to fraction form
   11,726,736/17,938,872 = 17,938,872/x
3. Step 3: Cross multiply
   11,726,736x = 17,938,872 × 17,938,872
4. Step 4: Simplify right side
   11,726,736x = 321,803,128,632,384
5. Step 5: Solve for x
   x = 321,803,128,632,384/11,726,736
6. Step 6: Final answer
   x = 27,441,832.80