Finding the Third Proportional to 18,065.53 and 38,659.78

Step by Step Solution

1. Step 1: Write the proportion equation
   18,065.53 : 38,659.78 = 38,659.78 : x
2. Step 2: Convert to fraction form
   18,065.53/38,659.78 = 38,659.78/x
3. Step 3: Cross multiply
   18,065.53x = 38,659.78 × 38,659.78
4. Step 4: Simplify right side
   18,065.53x = 1,494,578,686.30
5. Step 5: Solve for x
   x = 1,494,578,686.30/18,065.53
6. Step 6: Final answer
   x = 82,730.96