Finding the Third Proportional to 11,623.50 and 21,591.56

Step by Step Solution

1. Step 1: Write the proportion equation
   11,623.50 : 21,591.56 = 21,591.56 : x
2. Step 2: Convert to fraction form
   11,623.50/21,591.56 = 21,591.56/x
3. Step 3: Cross multiply
   11,623.50x = 21,591.56 × 21,591.56
4. Step 4: Simplify right side
   11,623.50x = 466,195,571.19
5. Step 5: Solve for x
   x = 466,195,571.19/11,623.50
6. Step 6: Final answer
   x = 40,108.02