Finding the Third Proportional to 19,780 and 43,118

Step by Step Solution

1. Step 1: Write the proportion equation
   19,780 : 43,118 = 43,118 : x
2. Step 2: Convert to fraction form
   19,780/43,118 = 43,118/x
3. Step 3: Cross multiply
   19,780x = 43,118 × 43,118
4. Step 4: Simplify right side
   19,780x = 1,859,161,924
5. Step 5: Solve for x
   x = 1,859,161,924/19,780
6. Step 6: Final answer
   x = 93,992.01