Finding the Third Proportional to 52,920 and 82,112

Step by Step Solution

1. Step 1: Write the proportion equation
   52,920 : 82,112 = 82,112 : x
2. Step 2: Convert to fraction form
   52,920/82,112 = 82,112/x
3. Step 3: Cross multiply
   52,920x = 82,112 × 82,112
4. Step 4: Simplify right side
   52,920x = 6,742,380,544
5. Step 5: Solve for x
   x = 6,742,380,544/52,920
6. Step 6: Final answer
   x = 127,407.04