Finding the Third Proportional to 13,216.50 and 17,619.75

Step by Step Solution

1. Step 1: Write the proportion equation
   13,216.50 : 17,619.75 = 17,619.75 : x
2. Step 2: Convert to fraction form
   13,216.50/17,619.75 = 17,619.75/x
3. Step 3: Cross multiply
   13,216.50x = 17,619.75 × 17,619.75
4. Step 4: Simplify right side
   13,216.50x = 310,455,590.06
5. Step 5: Solve for x
   x = 310,455,590.06/13,216.50
6. Step 6: Final answer
   x = 23,490.00