Finding the Third Proportional to 78,012 and 111,474

Step by Step Solution

1. Step 1: Write the proportion equation
   78,012 : 111,474 = 111,474 : x
2. Step 2: Convert to fraction form
   78,012/111,474 = 111,474/x
3. Step 3: Cross multiply
   78,012x = 111,474 × 111,474
4. Step 4: Simplify right side
   78,012x = 12,426,452,676
5. Step 5: Solve for x
   x = 12,426,452,676/78,012
6. Step 6: Final answer
   x = 159,288.99