Finding the Third Proportional to 40,948 and 57,990

Step by Step Solution

1. Step 1: Write the proportion equation
   40,948 : 57,990 = 57,990 : x
2. Step 2: Convert to fraction form
   40,948/57,990 = 57,990/x
3. Step 3: Cross multiply
   40,948x = 57,990 × 57,990
4. Step 4: Simplify right side
   40,948x = 3,362,840,100
5. Step 5: Solve for x
   x = 3,362,840,100/40,948
6. Step 6: Final answer
   x = 82,124.65