Finding the Third Proportional to 111,490 and 238,244

Step by Step Solution

1. Step 1: Write the proportion equation
   111,490 : 238,244 = 238,244 : x
2. Step 2: Convert to fraction form
   111,490/238,244 = 238,244/x
3. Step 3: Cross multiply
   111,490x = 238,244 × 238,244
4. Step 4: Simplify right side
   111,490x = 56,760,203,536
5. Step 5: Solve for x
   x = 56,760,203,536/111,490
6. Step 6: Final answer
   x = 509,105.78