Finding the Third Proportional to 111,166 and 243,414

Step by Step Solution

1. Step 1: Write the proportion equation
   111,166 : 243,414 = 243,414 : x
2. Step 2: Convert to fraction form
   111,166/243,414 = 243,414/x
3. Step 3: Cross multiply
   111,166x = 243,414 × 243,414
4. Step 4: Simplify right side
   111,166x = 59,250,375,396
5. Step 5: Solve for x
   x = 59,250,375,396/111,166
6. Step 6: Final answer
   x = 532,990.08