Finding the Third Proportional to 12,680 and 30,835

Step by Step Solution

1. Step 1: Write the proportion equation
   12,680 : 30,835 = 30,835 : x
2. Step 2: Convert to fraction form
   12,680/30,835 = 30,835/x
3. Step 3: Cross multiply
   12,680x = 30,835 × 30,835
4. Step 4: Simplify right side
   12,680x = 950,797,225
5. Step 5: Solve for x
   x = 950,797,225/12,680
6. Step 6: Final answer
   x = 74,984.01