Finding the Third Proportional to 31,328 and 48,488

Step by Step Solution

1. Step 1: Write the proportion equation
   31,328 : 48,488 = 48,488 : x
2. Step 2: Convert to fraction form
   31,328/48,488 = 48,488/x
3. Step 3: Cross multiply
   31,328x = 48,488 × 48,488
4. Step 4: Simplify right side
   31,328x = 2,351,086,144
5. Step 5: Solve for x
   x = 2,351,086,144/31,328
6. Step 6: Final answer
   x = 75,047.44