Finding the Third Proportional to 12,355.03 and 15,202.69

Step by Step Solution

1. Step 1: Write the proportion equation
   12,355.03 : 15,202.69 = 15,202.69 : x
2. Step 2: Convert to fraction form
   12,355.03/15,202.69 = 15,202.69/x
3. Step 3: Cross multiply
   12,355.03x = 15,202.69 × 15,202.69
4. Step 4: Simplify right side
   12,355.03x = 231,121,707.22
5. Step 5: Solve for x
   x = 231,121,707.22/12,355.03
6. Step 6: Final answer
   x = 18,706.69