Finding the Third Proportional to 1,520.72 and 3,317.06

Step by Step Solution

1. Step 1: Write the proportion equation
   1,520.72 : 3,317.06 = 3,317.06 : x
2. Step 2: Convert to fraction form
   1,520.72/3,317.06 = 3,317.06/x
3. Step 3: Cross multiply
   1,520.72x = 3,317.06 × 3,317.06
4. Step 4: Simplify right side
   1,520.72x = 11,002,903.63
5. Step 5: Solve for x
   x = 11,002,903.63/1,520.72
6. Step 6: Final answer
   x = 7,235.33