Finding the Third Proportional to 7,423.50 and 15,120.75

Step by Step Solution

1. Step 1: Write the proportion equation
   7,423.50 : 15,120.75 = 15,120.75 : x
2. Step 2: Convert to fraction form
   7,423.50/15,120.75 = 15,120.75/x
3. Step 3: Cross multiply
   7,423.50x = 15,120.75 × 15,120.75
4. Step 4: Simplify right side
   7,423.50x = 228,637,080.56
5. Step 5: Solve for x
   x = 228,637,080.56/7,423.50
6. Step 6: Final answer
   x = 30,799.09