Finding the Third Proportional to 25,818.75 and 55,221.75

Step by Step Solution

1. Step 1: Write the proportion equation
   25,818.75 : 55,221.75 = 55,221.75 : x
2. Step 2: Convert to fraction form
   25,818.75/55,221.75 = 55,221.75/x
3. Step 3: Cross multiply
   25,818.75x = 55,221.75 × 55,221.75
4. Step 4: Simplify right side
   25,818.75x = 3,049,441,673.06
5. Step 5: Solve for x
   x = 3,049,441,673.06/25,818.75
6. Step 6: Final answer
   x = 118,109.58