Finding the Third Proportional to 7,122 and 17,008.50

Step by Step Solution

1. Step 1: Write the proportion equation
   7,122 : 17,008.50 = 17,008.50 : x
2. Step 2: Convert to fraction form
   7,122/17,008.50 = 17,008.50/x
3. Step 3: Cross multiply
   7,122x = 17,008.50 × 17,008.50
4. Step 4: Simplify right side
   7,122x = 289,289,072.25
5. Step 5: Solve for x
   x = 289,289,072.25/7,122
6. Step 6: Final answer
   x = 40,619.08