Finding the Third Proportional to 19,782 and 43,020

Step by Step Solution

1. Step 1: Write the proportion equation
   19,782 : 43,020 = 43,020 : x
2. Step 2: Convert to fraction form
   19,782/43,020 = 43,020/x
3. Step 3: Cross multiply
   19,782x = 43,020 × 43,020
4. Step 4: Simplify right side
   19,782x = 1,850,720,400
5. Step 5: Solve for x
   x = 1,850,720,400/19,782
6. Step 6: Final answer
   x = 93,555.78