Finding the Third Proportional to 18,860.34 and 39,269.81

Step by Step Solution

1. Step 1: Write the proportion equation
   18,860.34 : 39,269.81 = 39,269.81 : x
2. Step 2: Convert to fraction form
   18,860.34/39,269.81 = 39,269.81/x
3. Step 3: Cross multiply
   18,860.34x = 39,269.81 × 39,269.81
4. Step 4: Simplify right side
   18,860.34x = 1,542,118,173.79
5. Step 5: Solve for x
   x = 1,542,118,173.79/18,860.34
6. Step 6: Final answer
   x = 81,765.11