Finding the Third Proportional to 1,436 and 2,158

Step by Step Solution

1. Step 1: Write the proportion equation
   1,436 : 2,158 = 2,158 : x
2. Step 2: Convert to fraction form
   1,436/2,158 = 2,158/x
3. Step 3: Cross multiply
   1,436x = 2,158 × 2,158
4. Step 4: Simplify right side
   1,436x = 4,656,964
5. Step 5: Solve for x
   x = 4,656,964/1,436
6. Step 6: Final answer
   x = 3,243.01