Finding the Third Proportional to 4,468.50 and 9,716.63

Step by Step Solution

1. Step 1: Write the proportion equation
   4,468.50 : 9,716.63 = 9,716.63 : x
2. Step 2: Convert to fraction form
   4,468.50/9,716.63 = 9,716.63/x
3. Step 3: Cross multiply
   4,468.50x = 9,716.63 × 9,716.63
4. Step 4: Simplify right side
   4,468.50x = 94,412,801.39
5. Step 5: Solve for x
   x = 94,412,801.39/4,468.50
6. Step 6: Final answer
   x = 21,128.52