Finding the Third Proportional to 20,160 and 43,242

Step by Step Solution

1. Step 1: Write the proportion equation
   20,160 : 43,242 = 43,242 : x
2. Step 2: Convert to fraction form
   20,160/43,242 = 43,242/x
3. Step 3: Cross multiply
   20,160x = 43,242 × 43,242
4. Step 4: Simplify right side
   20,160x = 1,869,870,564
5. Step 5: Solve for x
   x = 1,869,870,564/20,160
6. Step 6: Final answer
   x = 92,751.52