Finding the Third Proportional to 4,077.50 and 5,539.50

Step by Step Solution

1. Step 1: Write the proportion equation
   4,077.50 : 5,539.50 = 5,539.50 : x
2. Step 2: Convert to fraction form
   4,077.50/5,539.50 = 5,539.50/x
3. Step 3: Cross multiply
   4,077.50x = 5,539.50 × 5,539.50
4. Step 4: Simplify right side
   4,077.50x = 30,686,060.25
5. Step 5: Solve for x
   x = 30,686,060.25/4,077.50
6. Step 6: Final answer
   x = 7,525.70