Finding the Third Proportional to 9,722.50 and 21,328

Step by Step Solution

1. Step 1: Write the proportion equation
   9,722.50 : 21,328 = 21,328 : x
2. Step 2: Convert to fraction form
   9,722.50/21,328 = 21,328/x
3. Step 3: Cross multiply
   9,722.50x = 21,328 × 21,328
4. Step 4: Simplify right side
   9,722.50x = 454,883,584
5. Step 5: Solve for x
   x = 454,883,584/9,722.50
6. Step 6: Final answer
   x = 46,786.69