Finding the Third Proportional to 21,510.75 and 31,560.75

Step by Step Solution

1. Step 1: Write the proportion equation
   21,510.75 : 31,560.75 = 31,560.75 : x
2. Step 2: Convert to fraction form
   21,510.75/31,560.75 = 31,560.75/x
3. Step 3: Cross multiply
   21,510.75x = 31,560.75 × 31,560.75
4. Step 4: Simplify right side
   21,510.75x = 996,080,940.56
5. Step 5: Solve for x
   x = 996,080,940.56/21,510.75
6. Step 6: Final answer
   x = 46,306.19