Finding the Third Proportional to 111,690 and 238,962

Step by Step Solution

1. Step 1: Write the proportion equation
   111,690 : 238,962 = 238,962 : x
2. Step 2: Convert to fraction form
   111,690/238,962 = 238,962/x
3. Step 3: Cross multiply
   111,690x = 238,962 × 238,962
4. Step 4: Simplify right side
   111,690x = 57,102,837,444
5. Step 5: Solve for x
   x = 57,102,837,444/111,690
6. Step 6: Final answer
   x = 511,261.86