Finding the Third Proportional to 19,821.38 and 30,359.63

Step by Step Solution

1. Step 1: Write the proportion equation
   19,821.38 : 30,359.63 = 30,359.63 : x
2. Step 2: Convert to fraction form
   19,821.38/30,359.63 = 30,359.63/x
3. Step 3: Cross multiply
   19,821.38x = 30,359.63 × 30,359.63
4. Step 4: Simplify right side
   19,821.38x = 921,706,830.14
5. Step 5: Solve for x
   x = 921,706,830.14/19,821.38
6. Step 6: Final answer
   x = 46,500.65