Finding the Third Proportional to 13,459.92 and 18,861.61

Step by Step Solution

1. Step 1: Write the proportion equation
   13,459.92 : 18,861.61 = 18,861.61 : x
2. Step 2: Convert to fraction form
   13,459.92/18,861.61 = 18,861.61/x
3. Step 3: Cross multiply
   13,459.92x = 18,861.61 × 18,861.61
4. Step 4: Simplify right side
   13,459.92x = 355,760,308.22
5. Step 5: Solve for x
   x = 355,760,308.22/13,459.92
6. Step 6: Final answer
   x = 26,431.08