Finding the Third Proportional to 19,443.80 and 31,403.95

Step by Step Solution

1. Step 1: Write the proportion equation
   19,443.80 : 31,403.95 = 31,403.95 : x
2. Step 2: Convert to fraction form
   19,443.80/31,403.95 = 31,403.95/x
3. Step 3: Cross multiply
   19,443.80x = 31,403.95 × 31,403.95
4. Step 4: Simplify right side
   19,443.80x = 986,208,271.88
5. Step 5: Solve for x
   x = 986,208,271.88/19,443.80
6. Step 6: Final answer
   x = 50,720.97