Finding the Third Proportional to 9,684.56 and 21,216.94

Step by Step Solution

1. Step 1: Write the proportion equation
   9,684.56 : 21,216.94 = 21,216.94 : x
2. Step 2: Convert to fraction form
   9,684.56/21,216.94 = 21,216.94/x
3. Step 3: Cross multiply
   9,684.56x = 21,216.94 × 21,216.94
4. Step 4: Simplify right side
   9,684.56x = 450,158,436.88
5. Step 5: Solve for x
   x = 450,158,436.88/9,684.56
6. Step 6: Final answer
   x = 46,482.06