Finding the Third Proportional to 39,872 and 59,904

Step by Step Solution

1. Step 1: Write the proportion equation
   39,872 : 59,904 = 59,904 : x
2. Step 2: Convert to fraction form
   39,872/59,904 = 59,904/x
3. Step 3: Cross multiply
   39,872x = 59,904 × 59,904
4. Step 4: Simplify right side
   39,872x = 3,588,489,216
5. Step 5: Solve for x
   x = 3,588,489,216/39,872
6. Step 6: Final answer
   x = 90,000.23