Finding the Third Proportional to 20,816 and 45,118

Step by Step Solution

1. Step 1: Write the proportion equation
   20,816 : 45,118 = 45,118 : x
2. Step 2: Convert to fraction form
   20,816/45,118 = 45,118/x
3. Step 3: Cross multiply
   20,816x = 45,118 × 45,118
4. Step 4: Simplify right side
   20,816x = 2,035,633,924
5. Step 5: Solve for x
   x = 2,035,633,924/20,816
6. Step 6: Final answer
   x = 97,791.79