Finding the Third Proportional to 16,708.78 and 22,272.47

Step by Step Solution

1. Step 1: Write the proportion equation
   16,708.78 : 22,272.47 = 22,272.47 : x
2. Step 2: Convert to fraction form
   16,708.78/22,272.47 = 22,272.47/x
3. Step 3: Cross multiply
   16,708.78x = 22,272.47 × 22,272.47
4. Step 4: Simplify right side
   16,708.78x = 496,062,864.22
5. Step 5: Solve for x
   x = 496,062,864.22/16,708.78
6. Step 6: Final answer
   x = 29,688.75