Finding the Third Proportional to 19,108.55 and 28,617.05

Step by Step Solution

1. Step 1: Write the proportion equation
   19,108.55 : 28,617.05 = 28,617.05 : x
2. Step 2: Convert to fraction form
   19,108.55/28,617.05 = 28,617.05/x
3. Step 3: Cross multiply
   19,108.55x = 28,617.05 × 28,617.05
4. Step 4: Simplify right side
   19,108.55x = 818,935,371.85
5. Step 5: Solve for x
   x = 818,935,371.85/19,108.55
6. Step 6: Final answer
   x = 42,857.02