Finding the Third Proportional to 72,488 and 111,452

Step by Step Solution

1. Step 1: Write the proportion equation
   72,488 : 111,452 = 111,452 : x
2. Step 2: Convert to fraction form
   72,488/111,452 = 111,452/x
3. Step 3: Cross multiply
   72,488x = 111,452 × 111,452
4. Step 4: Simplify right side
   72,488x = 12,421,548,304
5. Step 5: Solve for x
   x = 12,421,548,304/72,488
6. Step 6: Final answer
   x = 171,360.06