Finding the Third Proportional to 4,920 and 5,608.50

Step by Step Solution

1. Step 1: Write the proportion equation
   4,920 : 5,608.50 = 5,608.50 : x
2. Step 2: Convert to fraction form
   4,920/5,608.50 = 5,608.50/x
3. Step 3: Cross multiply
   4,920x = 5,608.50 × 5,608.50
4. Step 4: Simplify right side
   4,920x = 31,455,272.25
5. Step 5: Solve for x
   x = 31,455,272.25/4,920
6. Step 6: Final answer
   x = 6,393.35