Finding the Third Proportional to 7,145.72 and 15,030.56

Step by Step Solution

1. Step 1: Write the proportion equation
   7,145.72 : 15,030.56 = 15,030.56 : x
2. Step 2: Convert to fraction form
   7,145.72/15,030.56 = 15,030.56/x
3. Step 3: Cross multiply
   7,145.72x = 15,030.56 × 15,030.56
4. Step 4: Simplify right side
   7,145.72x = 225,917,809.07
5. Step 5: Solve for x
   x = 225,917,809.07/7,145.72
6. Step 6: Final answer
   x = 31,615.83