Finding the Third Proportional to 9,168 and 13,687.50

Step by Step Solution

1. Step 1: Write the proportion equation
   9,168 : 13,687.50 = 13,687.50 : x
2. Step 2: Convert to fraction form
   9,168/13,687.50 = 13,687.50/x
3. Step 3: Cross multiply
   9,168x = 13,687.50 × 13,687.50
4. Step 4: Simplify right side
   9,168x = 187,347,656.25
5. Step 5: Solve for x
   x = 187,347,656.25/9,168
6. Step 6: Final answer
   x = 20,434.95