Finding the Third Proportional to 3,386.53 and 7,272.56

Step by Step Solution

1. Step 1: Write the proportion equation
   3,386.53 : 7,272.56 = 7,272.56 : x
2. Step 2: Convert to fraction form
   3,386.53/7,272.56 = 7,272.56/x
3. Step 3: Cross multiply
   3,386.53x = 7,272.56 × 7,272.56
4. Step 4: Simplify right side
   3,386.53x = 52,890,165.32
5. Step 5: Solve for x
   x = 52,890,165.32/3,386.53
6. Step 6: Final answer
   x = 15,617.80