Finding the Third Proportional to 59,212 and 129,116

Step by Step Solution

1. Step 1: Write the proportion equation
   59,212 : 129,116 = 129,116 : x
2. Step 2: Convert to fraction form
   59,212/129,116 = 129,116/x
3. Step 3: Cross multiply
   59,212x = 129,116 × 129,116
4. Step 4: Simplify right side
   59,212x = 16,670,941,456
5. Step 5: Solve for x
   x = 16,670,941,456/59,212
6. Step 6: Final answer
   x = 281,546.67