Finding the Third Proportional to 3,912 and 5,308.50

Step by Step Solution

1. Step 1: Write the proportion equation
   3,912 : 5,308.50 = 5,308.50 : x
2. Step 2: Convert to fraction form
   3,912/5,308.50 = 5,308.50/x
3. Step 3: Cross multiply
   3,912x = 5,308.50 × 5,308.50
4. Step 4: Simplify right side
   3,912x = 28,180,172.25
5. Step 5: Solve for x
   x = 28,180,172.25/3,912
6. Step 6: Final answer
   x = 7,203.52