Finding the Third Proportional to 42,757.50 and 68,049

Step by Step Solution

1. Step 1: Write the proportion equation
   42,757.50 : 68,049 = 68,049 : x
2. Step 2: Convert to fraction form
   42,757.50/68,049 = 68,049/x
3. Step 3: Cross multiply
   42,757.50x = 68,049 × 68,049
4. Step 4: Simplify right side
   42,757.50x = 4,630,666,401
5. Step 5: Solve for x
   x = 4,630,666,401/42,757.50
6. Step 6: Final answer
   x = 108,300.68