Finding the Third Proportional to 39,150 and 55,809

Step by Step Solution

1. Step 1: Write the proportion equation
   39,150 : 55,809 = 55,809 : x
2. Step 2: Convert to fraction form
   39,150/55,809 = 55,809/x
3. Step 3: Cross multiply
   39,150x = 55,809 × 55,809
4. Step 4: Simplify right side
   39,150x = 3,114,644,481
5. Step 5: Solve for x
   x = 3,114,644,481/39,150
6. Step 6: Final answer
   x = 79,556.69