Finding the Third Proportional to 18,218.25 and 37,830.38

Step by Step Solution

1. Step 1: Write the proportion equation
   18,218.25 : 37,830.38 = 37,830.38 : x
2. Step 2: Convert to fraction form
   18,218.25/37,830.38 = 37,830.38/x
3. Step 3: Cross multiply
   18,218.25x = 37,830.38 × 37,830.38
4. Step 4: Simplify right side
   18,218.25x = 1,431,137,272.64
5. Step 5: Solve for x
   x = 1,431,137,272.64/18,218.25
6. Step 6: Final answer
   x = 78,555.15