Finding the Third Proportional to 11,990.25 and 26,359.50

Step by Step Solution

1. Step 1: Write the proportion equation
   11,990.25 : 26,359.50 = 26,359.50 : x
2. Step 2: Convert to fraction form
   11,990.25/26,359.50 = 26,359.50/x
3. Step 3: Cross multiply
   11,990.25x = 26,359.50 × 26,359.50
4. Step 4: Simplify right side
   11,990.25x = 694,823,240.25
5. Step 5: Solve for x
   x = 694,823,240.25/11,990.25
6. Step 6: Final answer
   x = 57,949.02