Finding the Third Proportional to 16,288.59 and 21,786.47

Step by Step Solution

1. Step 1: Write the proportion equation
   16,288.59 : 21,786.47 = 21,786.47 : x
2. Step 2: Convert to fraction form
   16,288.59/21,786.47 = 21,786.47/x
3. Step 3: Cross multiply
   16,288.59x = 21,786.47 × 21,786.47
4. Step 4: Simplify right side
   16,288.59x = 474,650,220.59
5. Step 5: Solve for x
   x = 474,650,220.59/16,288.59
6. Step 6: Final answer
   x = 29,140.04