Finding the Third Proportional to 7,663.50 and 16,420.25

Step by Step Solution

1. Step 1: Write the proportion equation
   7,663.50 : 16,420.25 = 16,420.25 : x
2. Step 2: Convert to fraction form
   7,663.50/16,420.25 = 16,420.25/x
3. Step 3: Cross multiply
   7,663.50x = 16,420.25 × 16,420.25
4. Step 4: Simplify right side
   7,663.50x = 269,624,610.06
5. Step 5: Solve for x
   x = 269,624,610.06/7,663.50
6. Step 6: Final answer
   x = 35,182.96