Finding the Third Proportional to 19,981.69 and 31,078.69

Step by Step Solution

1. Step 1: Write the proportion equation
   19,981.69 : 31,078.69 = 31,078.69 : x
2. Step 2: Convert to fraction form
   19,981.69/31,078.69 = 31,078.69/x
3. Step 3: Cross multiply
   19,981.69x = 31,078.69 × 31,078.69
4. Step 4: Simplify right side
   19,981.69x = 965,884,816.72
5. Step 5: Solve for x
   x = 965,884,816.72/19,981.69
6. Step 6: Final answer
   x = 48,338.50