Finding the Third Proportional to 18,486.98 and 27,861.47

Step by Step Solution

1. Step 1: Write the proportion equation
   18,486.98 : 27,861.47 = 27,861.47 : x
2. Step 2: Convert to fraction form
   18,486.98/27,861.47 = 27,861.47/x
3. Step 3: Cross multiply
   18,486.98x = 27,861.47 × 27,861.47
4. Step 4: Simplify right side
   18,486.98x = 776,261,440.91
5. Step 5: Solve for x
   x = 776,261,440.91/18,486.98
6. Step 6: Final answer
   x = 41,989.62