Finding the Third Proportional to 12,785 and 20,060

Step by Step Solution

1. Step 1: Write the proportion equation
   12,785 : 20,060 = 20,060 : x
2. Step 2: Convert to fraction form
   12,785/20,060 = 20,060/x
3. Step 3: Cross multiply
   12,785x = 20,060 × 20,060
4. Step 4: Simplify right side
   12,785x = 402,403,600
5. Step 5: Solve for x
   x = 402,403,600/12,785
6. Step 6: Final answer
   x = 31,474.67