Finding the Third Proportional to 18,561.38 and 37,770.75

Step by Step Solution

1. Step 1: Write the proportion equation
   18,561.38 : 37,770.75 = 37,770.75 : x
2. Step 2: Convert to fraction form
   18,561.38/37,770.75 = 37,770.75/x
3. Step 3: Cross multiply
   18,561.38x = 37,770.75 × 37,770.75
4. Step 4: Simplify right side
   18,561.38x = 1,426,629,555.56
5. Step 5: Solve for x
   x = 1,426,629,555.56/18,561.38
6. Step 6: Final answer
   x = 76,860.12