Finding the Third Proportional to 19,869 and 41,371.50

Step by Step Solution

1. Step 1: Write the proportion equation
   19,869 : 41,371.50 = 41,371.50 : x
2. Step 2: Convert to fraction form
   19,869/41,371.50 = 41,371.50/x
3. Step 3: Cross multiply
   19,869x = 41,371.50 × 41,371.50
4. Step 4: Simplify right side
   19,869x = 1,711,601,012.25
5. Step 5: Solve for x
   x = 1,711,601,012.25/19,869
6. Step 6: Final answer
   x = 86,144.30