Finding the Third Proportional to 17,728.50 and 26,242.69

Step by Step Solution

1. Step 1: Write the proportion equation
   17,728.50 : 26,242.69 = 26,242.69 : x
2. Step 2: Convert to fraction form
   17,728.50/26,242.69 = 26,242.69/x
3. Step 3: Cross multiply
   17,728.50x = 26,242.69 × 26,242.69
4. Step 4: Simplify right side
   17,728.50x = 688,678,647.22
5. Step 5: Solve for x
   x = 688,678,647.22/17,728.50
6. Step 6: Final answer
   x = 38,845.85