Finding the Third Proportional to 17,939.81 and 36,775.69

Step by Step Solution

1. Step 1: Write the proportion equation
   17,939.81 : 36,775.69 = 36,775.69 : x
2. Step 2: Convert to fraction form
   17,939.81/36,775.69 = 36,775.69/x
3. Step 3: Cross multiply
   17,939.81x = 36,775.69 × 36,775.69
4. Step 4: Simplify right side
   17,939.81x = 1,352,451,191.10
5. Step 5: Solve for x
   x = 1,352,451,191.10/17,939.81
6. Step 6: Final answer
   x = 75,388.26