Finding the Third Proportional to 19,981.69 and 28,403.16

Step by Step Solution

1. Step 1: Write the proportion equation
   19,981.69 : 28,403.16 = 28,403.16 : x
2. Step 2: Convert to fraction form
   19,981.69/28,403.16 = 28,403.16/x
3. Step 3: Cross multiply
   19,981.69x = 28,403.16 × 28,403.16
4. Step 4: Simplify right side
   19,981.69x = 806,739,284.96
5. Step 5: Solve for x
   x = 806,739,284.96/19,981.69
6. Step 6: Final answer
   x = 40,373.93