Finding the Third Proportional to 12,994 and 20,251

Step by Step Solution

1. Step 1: Write the proportion equation
   12,994 : 20,251 = 20,251 : x
2. Step 2: Convert to fraction form
   12,994/20,251 = 20,251/x
3. Step 3: Cross multiply
   12,994x = 20,251 × 20,251
4. Step 4: Simplify right side
   12,994x = 410,103,001
5. Step 5: Solve for x
   x = 410,103,001/12,994
6. Step 6: Final answer
   x = 31,560.95