Finding the Third Proportional to 11,790 and 25,417.31

Step by Step Solution

1. Step 1: Write the proportion equation
   11,790 : 25,417.31 = 25,417.31 : x
2. Step 2: Convert to fraction form
   11,790/25,417.31 = 25,417.31/x
3. Step 3: Cross multiply
   11,790x = 25,417.31 × 25,417.31
4. Step 4: Simplify right side
   11,790x = 646,039,774.72
5. Step 5: Solve for x
   x = 646,039,774.72/11,790
6. Step 6: Final answer
   x = 54,795.57