Finding the Third Proportional to 41,620 and 64,040

Step by Step Solution

1. Step 1: Write the proportion equation
   41,620 : 64,040 = 64,040 : x
2. Step 2: Convert to fraction form
   41,620/64,040 = 64,040/x
3. Step 3: Cross multiply
   41,620x = 64,040 × 64,040
4. Step 4: Simplify right side
   41,620x = 4,101,121,600
5. Step 5: Solve for x
   x = 4,101,121,600/41,620
6. Step 6: Final answer
   x = 98,537.28