Finding the Third Proportional to 5,211 and 5,683.50

Step by Step Solution

1. Step 1: Write the proportion equation
   5,211 : 5,683.50 = 5,683.50 : x
2. Step 2: Convert to fraction form
   5,211/5,683.50 = 5,683.50/x
3. Step 3: Cross multiply
   5,211x = 5,683.50 × 5,683.50
4. Step 4: Simplify right side
   5,211x = 32,302,172.25
5. Step 5: Solve for x
   x = 32,302,172.25/5,211
6. Step 6: Final answer
   x = 6,198.84