Finding the Third Proportional to 25,530.75 and 55,431

Step by Step Solution

1. Step 1: Write the proportion equation
   25,530.75 : 55,431 = 55,431 : x
2. Step 2: Convert to fraction form
   25,530.75/55,431 = 55,431/x
3. Step 3: Cross multiply
   25,530.75x = 55,431 × 55,431
4. Step 4: Simplify right side
   25,530.75x = 3,072,595,761
5. Step 5: Solve for x
   x = 3,072,595,761/25,530.75
6. Step 6: Final answer
   x = 120,348.82