Finding the Third Proportional to 17,725.50 and 20,425.50

Step by Step Solution

1. Step 1: Write the proportion equation
   17,725.50 : 20,425.50 = 20,425.50 : x
2. Step 2: Convert to fraction form
   17,725.50/20,425.50 = 20,425.50/x
3. Step 3: Cross multiply
   17,725.50x = 20,425.50 × 20,425.50
4. Step 4: Simplify right side
   17,725.50x = 417,201,050.25
5. Step 5: Solve for x
   x = 417,201,050.25/17,725.50
6. Step 6: Final answer
   x = 23,536.77