Finding the Third Proportional to 130,960 and 279,008

Step by Step Solution

1. Step 1: Write the proportion equation
   130,960 : 279,008 = 279,008 : x
2. Step 2: Convert to fraction form
   130,960/279,008 = 279,008/x
3. Step 3: Cross multiply
   130,960x = 279,008 × 279,008
4. Step 4: Simplify right side
   130,960x = 77,845,464,064
5. Step 5: Solve for x
   x = 77,845,464,064/130,960
6. Step 6: Final answer
   x = 594,421.69