Finding the Third Proportional to 59,790 and 140,940

Step by Step Solution

1. Step 1: Write the proportion equation
   59,790 : 140,940 = 140,940 : x
2. Step 2: Convert to fraction form
   59,790/140,940 = 140,940/x
3. Step 3: Cross multiply
   59,790x = 140,940 × 140,940
4. Step 4: Simplify right side
   59,790x = 19,864,083,600
5. Step 5: Solve for x
   x = 19,864,083,600/59,790
6. Step 6: Final answer
   x = 332,230.87