Finding the Third Proportional to 13,152.50 and 17,720.50

Step by Step Solution

1. Step 1: Write the proportion equation
   13,152.50 : 17,720.50 = 17,720.50 : x
2. Step 2: Convert to fraction form
   13,152.50/17,720.50 = 17,720.50/x
3. Step 3: Cross multiply
   13,152.50x = 17,720.50 × 17,720.50
4. Step 4: Simplify right side
   13,152.50x = 314,016,120.25
5. Step 5: Solve for x
   x = 314,016,120.25/13,152.50
6. Step 6: Final answer
   x = 23,875.01