Finding the Third Proportional to 20,472 and 43,118

Step by Step Solution

1. Step 1: Write the proportion equation
   20,472 : 43,118 = 43,118 : x
2. Step 2: Convert to fraction form
   20,472/43,118 = 43,118/x
3. Step 3: Cross multiply
   20,472x = 43,118 × 43,118
4. Step 4: Simplify right side
   20,472x = 1,859,161,924
5. Step 5: Solve for x
   x = 1,859,161,924/20,472
6. Step 6: Final answer
   x = 90,814.87