Finding the Third Proportional to 39,690 and 60,831

Step by Step Solution

1. Step 1: Write the proportion equation
   39,690 : 60,831 = 60,831 : x
2. Step 2: Convert to fraction form
   39,690/60,831 = 60,831/x
3. Step 3: Cross multiply
   39,690x = 60,831 × 60,831
4. Step 4: Simplify right side
   39,690x = 3,700,410,561
5. Step 5: Solve for x
   x = 3,700,410,561/39,690
6. Step 6: Final answer
   x = 93,232.82