Finding the Third Proportional to 48,478.50 and 71,121.75

Step by Step Solution

1. Step 1: Write the proportion equation
   48,478.50 : 71,121.75 = 71,121.75 : x
2. Step 2: Convert to fraction form
   48,478.50/71,121.75 = 71,121.75/x
3. Step 3: Cross multiply
   48,478.50x = 71,121.75 × 71,121.75
4. Step 4: Simplify right side
   48,478.50x = 5,058,303,323.06
5. Step 5: Solve for x
   x = 5,058,303,323.06/48,478.50
6. Step 6: Final answer
   x = 104,341.17