Finding the Third Proportional to 6,020.25 and 7,990.50

Step by Step Solution

1. Step 1: Write the proportion equation
   6,020.25 : 7,990.50 = 7,990.50 : x
2. Step 2: Convert to fraction form
   6,020.25/7,990.50 = 7,990.50/x
3. Step 3: Cross multiply
   6,020.25x = 7,990.50 × 7,990.50
4. Step 4: Simplify right side
   6,020.25x = 63,848,090.25
5. Step 5: Solve for x
   x = 63,848,090.25/6,020.25
6. Step 6: Final answer
   x = 10,605.55