Finding the Third Proportional to 39,669 and 59,910

Step by Step Solution

1. Step 1: Write the proportion equation
   39,669 : 59,910 = 59,910 : x
2. Step 2: Convert to fraction form
   39,669/59,910 = 59,910/x
3. Step 3: Cross multiply
   39,669x = 59,910 × 59,910
4. Step 4: Simplify right side
   39,669x = 3,589,208,100
5. Step 5: Solve for x
   x = 3,589,208,100/39,669
6. Step 6: Final answer
   x = 90,478.92