Finding the Third Proportional to 11,820.94 and 25,435.69

Step by Step Solution

1. Step 1: Write the proportion equation
   11,820.94 : 25,435.69 = 25,435.69 : x
2. Step 2: Convert to fraction form
   11,820.94/25,435.69 = 25,435.69/x
3. Step 3: Cross multiply
   11,820.94x = 25,435.69 × 25,435.69
4. Step 4: Simplify right side
   11,820.94x = 646,974,198.60
5. Step 5: Solve for x
   x = 646,974,198.60/11,820.94
6. Step 6: Final answer
   x = 54,731.21