Finding the Third Proportional to 111,391 and 231,961

Step by Step Solution

1. Step 1: Write the proportion equation
   111,391 : 231,961 = 231,961 : x
2. Step 2: Convert to fraction form
   111,391/231,961 = 231,961/x
3. Step 3: Cross multiply
   111,391x = 231,961 × 231,961
4. Step 4: Simplify right side
   111,391x = 53,805,905,521
5. Step 5: Solve for x
   x = 53,805,905,521/111,391
6. Step 6: Final answer
   x = 483,036.38