Finding the Third Proportional to 16,653.81 and 21,606.59

Step by Step Solution

1. Step 1: Write the proportion equation
   16,653.81 : 21,606.59 = 21,606.59 : x
2. Step 2: Convert to fraction form
   16,653.81/21,606.59 = 21,606.59/x
3. Step 3: Cross multiply
   16,653.81x = 21,606.59 × 21,606.59
4. Step 4: Simplify right side
   16,653.81x = 466,844,809.08
5. Step 5: Solve for x
   x = 466,844,809.08/16,653.81
6. Step 6: Final answer
   x = 28,032.32