Finding the Third Proportional to 3,500.72 and 7,403.91

Step by Step Solution

1. Step 1: Write the proportion equation
   3,500.72 : 7,403.91 = 7,403.91 : x
2. Step 2: Convert to fraction form
   3,500.72/7,403.91 = 7,403.91/x
3. Step 3: Cross multiply
   3,500.72x = 7,403.91 × 7,403.91
4. Step 4: Simplify right side
   3,500.72x = 54,817,827.76
5. Step 5: Solve for x
   x = 54,817,827.76/3,500.72
6. Step 6: Final answer
   x = 15,659.02