Finding the Third Proportional to 13,860 and 20,059.50

Step by Step Solution

1. Step 1: Write the proportion equation
   13,860 : 20,059.50 = 20,059.50 : x
2. Step 2: Convert to fraction form
   13,860/20,059.50 = 20,059.50/x
3. Step 3: Cross multiply
   13,860x = 20,059.50 × 20,059.50
4. Step 4: Simplify right side
   13,860x = 402,383,540.25
5. Step 5: Solve for x
   x = 402,383,540.25/13,860
6. Step 6: Final answer
   x = 29,032.00