Finding the Third Proportional to 5,354 and 12,898

Step by Step Solution

1. Step 1: Write the proportion equation
   5,354 : 12,898 = 12,898 : x
2. Step 2: Convert to fraction form
   5,354/12,898 = 12,898/x
3. Step 3: Cross multiply
   5,354x = 12,898 × 12,898
4. Step 4: Simplify right side
   5,354x = 166,358,404
5. Step 5: Solve for x
   x = 166,358,404/5,354
6. Step 6: Final answer
   x = 31,071.80