Finding the Third Proportional to 12,281.63 and 13,861.13

Step by Step Solution

1. Step 1: Write the proportion equation
   12,281.63 : 13,861.13 = 13,861.13 : x
2. Step 2: Convert to fraction form
   12,281.63/13,861.13 = 13,861.13/x
3. Step 3: Cross multiply
   12,281.63x = 13,861.13 × 13,861.13
4. Step 4: Simplify right side
   12,281.63x = 192,130,786.27
5. Step 5: Solve for x
   x = 192,130,786.27/12,281.63
6. Step 6: Final answer
   x = 15,643.76