Finding the Third Proportional to 3,521.25 and 7,742.25

Step by Step Solution

1. Step 1: Write the proportion equation
   3,521.25 : 7,742.25 = 7,742.25 : x
2. Step 2: Convert to fraction form
   3,521.25/7,742.25 = 7,742.25/x
3. Step 3: Cross multiply
   3,521.25x = 7,742.25 × 7,742.25
4. Step 4: Simplify right side
   3,521.25x = 59,942,435.06
5. Step 5: Solve for x
   x = 59,942,435.06/3,521.25
6. Step 6: Final answer
   x = 17,023.06