Finding the Third Proportional to 134,040 and 279,105

Step by Step Solution

1. Step 1: Write the proportion equation
   134,040 : 279,105 = 279,105 : x
2. Step 2: Convert to fraction form
   134,040/279,105 = 279,105/x
3. Step 3: Cross multiply
   134,040x = 279,105 × 279,105
4. Step 4: Simplify right side
   134,040x = 77,899,601,025
5. Step 5: Solve for x
   x = 77,899,601,025/134,040
6. Step 6: Final answer
   x = 581,166.82