Finding the Third Proportional to 11,311 and 12,958

Step by Step Solution

1. Step 1: Write the proportion equation
   11,311 : 12,958 = 12,958 : x
2. Step 2: Convert to fraction form
   11,311/12,958 = 12,958/x
3. Step 3: Cross multiply
   11,311x = 12,958 × 12,958
4. Step 4: Simplify right side
   11,311x = 167,909,764
5. Step 5: Solve for x
   x = 167,909,764/11,311
6. Step 6: Final answer
   x = 14,844.82