Finding the Third Proportional to 9,815.63 and 14,403.38

Step by Step Solution

1. Step 1: Write the proportion equation
   9,815.63 : 14,403.38 = 14,403.38 : x
2. Step 2: Convert to fraction form
   9,815.63/14,403.38 = 14,403.38/x
3. Step 3: Cross multiply
   9,815.63x = 14,403.38 × 14,403.38
4. Step 4: Simplify right side
   9,815.63x = 207,457,211.39
5. Step 5: Solve for x
   x = 207,457,211.39/9,815.63
6. Step 6: Final answer
   x = 21,135.41