Finding the Third Proportional to 111,942 and 243,372

Step by Step Solution

1. Step 1: Write the proportion equation
   111,942 : 243,372 = 243,372 : x
2. Step 2: Convert to fraction form
   111,942/243,372 = 243,372/x
3. Step 3: Cross multiply
   111,942x = 243,372 × 243,372
4. Step 4: Simplify right side
   111,942x = 59,229,930,384
5. Step 5: Solve for x
   x = 59,229,930,384/111,942
6. Step 6: Final answer
   x = 529,112.67