Finding the Third Proportional to 25,980 and 56,111.25

Step by Step Solution

1. Step 1: Write the proportion equation
   25,980 : 56,111.25 = 56,111.25 : x
2. Step 2: Convert to fraction form
   25,980/56,111.25 = 56,111.25/x
3. Step 3: Cross multiply
   25,980x = 56,111.25 × 56,111.25
4. Step 4: Simplify right side
   25,980x = 3,148,472,376.56
5. Step 5: Solve for x
   x = 3,148,472,376.56/25,980
6. Step 6: Final answer
   x = 121,188.31