Finding the Third Proportional to 19,804.50 and 30,921.75

Step by Step Solution

1. Step 1: Write the proportion equation
   19,804.50 : 30,921.75 = 30,921.75 : x
2. Step 2: Convert to fraction form
   19,804.50/30,921.75 = 30,921.75/x
3. Step 3: Cross multiply
   19,804.50x = 30,921.75 × 30,921.75
4. Step 4: Simplify right side
   19,804.50x = 956,154,623.06
5. Step 5: Solve for x
   x = 956,154,623.06/19,804.50
6. Step 6: Final answer
   x = 48,279.66