Finding the Third Proportional to 11,380.50 and 16,143.75

Step by Step Solution

1. Step 1: Write the proportion equation
   11,380.50 : 16,143.75 = 16,143.75 : x
2. Step 2: Convert to fraction form
   11,380.50/16,143.75 = 16,143.75/x
3. Step 3: Cross multiply
   11,380.50x = 16,143.75 × 16,143.75
4. Step 4: Simplify right side
   11,380.50x = 260,620,664.06
5. Step 5: Solve for x
   x = 260,620,664.06/11,380.50
6. Step 6: Final answer
   x = 22,900.63