Finding the Third Proportional to 18,156.66 and 39,817.83

Step by Step Solution

1. Step 1: Write the proportion equation
   18,156.66 : 39,817.83 = 39,817.83 : x
2. Step 2: Convert to fraction form
   18,156.66/39,817.83 = 39,817.83/x
3. Step 3: Cross multiply
   18,156.66x = 39,817.83 × 39,817.83
4. Step 4: Simplify right side
   18,156.66x = 1,585,459,436.59
5. Step 5: Solve for x
   x = 1,585,459,436.59/18,156.66
6. Step 6: Final answer
   x = 87,321.11