Finding the Third Proportional to 13,699.75 and 20,117.50

Step by Step Solution

1. Step 1: Write the proportion equation
   13,699.75 : 20,117.50 = 20,117.50 : x
2. Step 2: Convert to fraction form
   13,699.75/20,117.50 = 20,117.50/x
3. Step 3: Cross multiply
   13,699.75x = 20,117.50 × 20,117.50
4. Step 4: Simplify right side
   13,699.75x = 404,713,806.25
5. Step 5: Solve for x
   x = 404,713,806.25/13,699.75
6. Step 6: Final answer
   x = 29,541.69