Finding the Third Proportional to 25,820 and 53,980

Step by Step Solution

1. Step 1: Write the proportion equation
   25,820 : 53,980 = 53,980 : x
2. Step 2: Convert to fraction form
   25,820/53,980 = 53,980/x
3. Step 3: Cross multiply
   25,820x = 53,980 × 53,980
4. Step 4: Simplify right side
   25,820x = 2,913,840,400
5. Step 5: Solve for x
   x = 2,913,840,400/25,820
6. Step 6: Final answer
   x = 112,852.07