Finding the Third Proportional to 8,664.88 and 13,773.56

Step by Step Solution

1. Step 1: Write the proportion equation
   8,664.88 : 13,773.56 = 13,773.56 : x
2. Step 2: Convert to fraction form
   8,664.88/13,773.56 = 13,773.56/x
3. Step 3: Cross multiply
   8,664.88x = 13,773.56 × 13,773.56
4. Step 4: Simplify right side
   8,664.88x = 189,711,023.94
5. Step 5: Solve for x
   x = 189,711,023.94/8,664.88
6. Step 6: Final answer
   x = 21,894.26