Finding the Third Proportional to 25,810 and 56,480

Step by Step Solution

1. Step 1: Write the proportion equation
   25,810 : 56,480 = 56,480 : x
2. Step 2: Convert to fraction form
   25,810/56,480 = 56,480/x
3. Step 3: Cross multiply
   25,810x = 56,480 × 56,480
4. Step 4: Simplify right side
   25,810x = 3,189,990,400
5. Step 5: Solve for x
   x = 3,189,990,400/25,810
6. Step 6: Final answer
   x = 123,595.13