Finding the Third Proportional to 19,971 and 28,363.50

Step by Step Solution

1. Step 1: Write the proportion equation
   19,971 : 28,363.50 = 28,363.50 : x
2. Step 2: Convert to fraction form
   19,971/28,363.50 = 28,363.50/x
3. Step 3: Cross multiply
   19,971x = 28,363.50 × 28,363.50
4. Step 4: Simplify right side
   19,971x = 804,488,132.25
5. Step 5: Solve for x
   x = 804,488,132.25/19,971
6. Step 6: Final answer
   x = 40,282.82