Finding the Third Proportional to 21,510 and 47,256.75

Step by Step Solution

1. Step 1: Write the proportion equation
   21,510 : 47,256.75 = 47,256.75 : x
2. Step 2: Convert to fraction form
   21,510/47,256.75 = 47,256.75/x
3. Step 3: Cross multiply
   21,510x = 47,256.75 × 47,256.75
4. Step 4: Simplify right side
   21,510x = 2,233,200,420.56
5. Step 5: Solve for x
   x = 2,233,200,420.56/21,510
6. Step 6: Final answer
   x = 103,821.50