Finding the Third Proportional to 7,123.13 and 10,453.09

Step by Step Solution

1. Step 1: Write the proportion equation
   7,123.13 : 10,453.09 = 10,453.09 : x
2. Step 2: Convert to fraction form
   7,123.13/10,453.09 = 10,453.09/x
3. Step 3: Cross multiply
   7,123.13x = 10,453.09 × 10,453.09
4. Step 4: Simplify right side
   7,123.13x = 109,267,168.95
5. Step 5: Solve for x
   x = 109,267,168.95/7,123.13
6. Step 6: Final answer
   x = 15,339.78