Finding the Third Proportional to 40,680 and 59,910

Step by Step Solution

1. Step 1: Write the proportion equation
   40,680 : 59,910 = 59,910 : x
2. Step 2: Convert to fraction form
   40,680/59,910 = 59,910/x
3. Step 3: Cross multiply
   40,680x = 59,910 × 59,910
4. Step 4: Simplify right side
   40,680x = 3,589,208,100
5. Step 5: Solve for x
   x = 3,589,208,100/40,680
6. Step 6: Final answer
   x = 88,230.29