Finding the Third Proportional to 5,990 and 13,156

Step by Step Solution

1. Step 1: Write the proportion equation
   5,990 : 13,156 = 13,156 : x
2. Step 2: Convert to fraction form
   5,990/13,156 = 13,156/x
3. Step 3: Cross multiply
   5,990x = 13,156 × 13,156
4. Step 4: Simplify right side
   5,990x = 173,080,336
5. Step 5: Solve for x
   x = 173,080,336/5,990
6. Step 6: Final answer
   x = 28,894.88