Finding the Third Proportional to 18,256.32 and 39,861.49

Step by Step Solution

1. Step 1: Write the proportion equation
   18,256.32 : 39,861.49 = 39,861.49 : x
2. Step 2: Convert to fraction form
   18,256.32/39,861.49 = 39,861.49/x
3. Step 3: Cross multiply
   18,256.32x = 39,861.49 × 39,861.49
4. Step 4: Simplify right side
   18,256.32x = 1,588,938,559.41
5. Step 5: Solve for x
   x = 1,588,938,559.41/18,256.32
6. Step 6: Final answer
   x = 87,034.97