Finding the Third Proportional to 21,256 and 34,124

Step by Step Solution

1. Step 1: Write the proportion equation
   21,256 : 34,124 = 34,124 : x
2. Step 2: Convert to fraction form
   21,256/34,124 = 34,124/x
3. Step 3: Cross multiply
   21,256x = 34,124 × 34,124
4. Step 4: Simplify right side
   21,256x = 1,164,447,376
5. Step 5: Solve for x
   x = 1,164,447,376/21,256
6. Step 6: Final answer
   x = 54,782.06