Finding the Third Proportional to 2,272.13 and 3,215.25

Step by Step Solution

1. Step 1: Write the proportion equation
   2,272.13 : 3,215.25 = 3,215.25 : x
2. Step 2: Convert to fraction form
   2,272.13/3,215.25 = 3,215.25/x
3. Step 3: Cross multiply
   2,272.13x = 3,215.25 × 3,215.25
4. Step 4: Simplify right side
   2,272.13x = 10,337,832.56
5. Step 5: Solve for x
   x = 10,337,832.56/2,272.13
6. Step 6: Final answer
   x = 4,549.85