Finding the Third Proportional to 111,163 and 243,931

Step by Step Solution

1. Step 1: Write the proportion equation
   111,163 : 243,931 = 243,931 : x
2. Step 2: Convert to fraction form
   111,163/243,931 = 243,931/x
3. Step 3: Cross multiply
   111,163x = 243,931 × 243,931
4. Step 4: Simplify right side
   111,163x = 59,502,332,761
5. Step 5: Solve for x
   x = 59,502,332,761/111,163
6. Step 6: Final answer
   x = 535,271.02