Finding the Third Proportional to 82,404 and 111,939

Step by Step Solution

1. Step 1: Write the proportion equation
   82,404 : 111,939 = 111,939 : x
2. Step 2: Convert to fraction form
   82,404/111,939 = 111,939/x
3. Step 3: Cross multiply
   82,404x = 111,939 × 111,939
4. Step 4: Simplify right side
   82,404x = 12,530,339,721
5. Step 5: Solve for x
   x = 12,530,339,721/82,404
6. Step 6: Final answer
   x = 152,059.85