Finding the Third Proportional to 8,771.63 and 13,633.31

Step by Step Solution

1. Step 1: Write the proportion equation
   8,771.63 : 13,633.31 = 13,633.31 : x
2. Step 2: Convert to fraction form
   8,771.63/13,633.31 = 13,633.31/x
3. Step 3: Cross multiply
   8,771.63x = 13,633.31 × 13,633.31
4. Step 4: Simplify right side
   8,771.63x = 185,867,209.72
5. Step 5: Solve for x
   x = 185,867,209.72/8,771.63
6. Step 6: Final answer
   x = 21,189.60