Finding the Third Proportional to 17,910 and 39,057.75

Step by Step Solution

1. Step 1: Write the proportion equation
   17,910 : 39,057.75 = 39,057.75 : x
2. Step 2: Convert to fraction form
   17,910/39,057.75 = 39,057.75/x
3. Step 3: Cross multiply
   17,910x = 39,057.75 × 39,057.75
4. Step 4: Simplify right side
   17,910x = 1,525,507,835.06
5. Step 5: Solve for x
   x = 1,525,507,835.06/17,910
6. Step 6: Final answer
   x = 85,176.32