Finding the Third Proportional to 31,112 and 49,480

Step by Step Solution

1. Step 1: Write the proportion equation
   31,112 : 49,480 = 49,480 : x
2. Step 2: Convert to fraction form
   31,112/49,480 = 49,480/x
3. Step 3: Cross multiply
   31,112x = 49,480 × 49,480
4. Step 4: Simplify right side
   31,112x = 2,448,270,400
5. Step 5: Solve for x
   x = 2,448,270,400/31,112
6. Step 6: Final answer
   x = 78,692.16