Finding the Third Proportional to 21,393.75 and 47,706.56

Step by Step Solution

1. Step 1: Write the proportion equation
   21,393.75 : 47,706.56 = 47,706.56 : x
2. Step 2: Convert to fraction form
   21,393.75/47,706.56 = 47,706.56/x
3. Step 3: Cross multiply
   21,393.75x = 47,706.56 × 47,706.56
4. Step 4: Simplify right side
   21,393.75x = 2,275,916,105.57
5. Step 5: Solve for x
   x = 2,275,916,105.57/21,393.75
6. Step 6: Final answer
   x = 106,382.29