Finding the Third Proportional to 111,048 and 243,197

Step by Step Solution

1. Step 1: Write the proportion equation
   111,048 : 243,197 = 243,197 : x
2. Step 2: Convert to fraction form
   111,048/243,197 = 243,197/x
3. Step 3: Cross multiply
   111,048x = 243,197 × 243,197
4. Step 4: Simplify right side
   111,048x = 59,144,780,809
5. Step 5: Solve for x
   x = 59,144,780,809/111,048
6. Step 6: Final answer
   x = 532,605.55