Finding the Third Proportional to 38,986 and 55,560

Step by Step Solution

1. Step 1: Write the proportion equation
   38,986 : 55,560 = 55,560 : x
2. Step 2: Convert to fraction form
   38,986/55,560 = 55,560/x
3. Step 3: Cross multiply
   38,986x = 55,560 × 55,560
4. Step 4: Simplify right side
   38,986x = 3,086,913,600
5. Step 5: Solve for x
   x = 3,086,913,600/38,986
6. Step 6: Final answer
   x = 79,180.05