Finding the Third Proportional to 41,639.63 and 54,669.38

Step by Step Solution

1. Step 1: Write the proportion equation
   41,639.63 : 54,669.38 = 54,669.38 : x
2. Step 2: Convert to fraction form
   41,639.63/54,669.38 = 54,669.38/x
3. Step 3: Cross multiply
   41,639.63x = 54,669.38 × 54,669.38
4. Step 4: Simplify right side
   41,639.63x = 2,988,740,562.89
5. Step 5: Solve for x
   x = 2,988,740,562.89/41,639.63
6. Step 6: Final answer
   x = 71,776.36