Finding the Third Proportional to 111,360 and 238,912

Step by Step Solution

1. Step 1: Write the proportion equation
   111,360 : 238,912 = 238,912 : x
2. Step 2: Convert to fraction form
   111,360/238,912 = 238,912/x
3. Step 3: Cross multiply
   111,360x = 238,912 × 238,912
4. Step 4: Simplify right side
   111,360x = 57,078,943,744
5. Step 5: Solve for x
   x = 57,078,943,744/111,360
6. Step 6: Final answer
   x = 512,562.35