Finding the Third Proportional to 8,755.56 and 13,142.34

Step by Step Solution

1. Step 1: Write the proportion equation
   8,755.56 : 13,142.34 = 13,142.34 : x
2. Step 2: Convert to fraction form
   8,755.56/13,142.34 = 13,142.34/x
3. Step 3: Cross multiply
   8,755.56x = 13,142.34 × 13,142.34
4. Step 4: Simplify right side
   8,755.56x = 172,721,199.24
5. Step 5: Solve for x
   x = 172,721,199.24/8,755.56
6. Step 6: Final answer
   x = 19,727.02