Finding the Third Proportional to 118,566 and 279,882

Step by Step Solution

1. Step 1: Write the proportion equation
   118,566 : 279,882 = 279,882 : x
2. Step 2: Convert to fraction form
   118,566/279,882 = 279,882/x
3. Step 3: Cross multiply
   118,566x = 279,882 × 279,882
4. Step 4: Simplify right side
   118,566x = 78,333,933,924
5. Step 5: Solve for x
   x = 78,333,933,924/118,566
6. Step 6: Final answer
   x = 660,677.88