Finding the Third Proportional to 111,676 and 243,049

Step by Step Solution

1. Step 1: Write the proportion equation
   111,676 : 243,049 = 243,049 : x
2. Step 2: Convert to fraction form
   111,676/243,049 = 243,049/x
3. Step 3: Cross multiply
   111,676x = 243,049 × 243,049
4. Step 4: Simplify right side
   111,676x = 59,072,816,401
5. Step 5: Solve for x
   x = 59,072,816,401/111,676
6. Step 6: Final answer
   x = 528,966.08