Finding the Third Proportional to 118,463 and 279,650

Step by Step Solution

1. Step 1: Write the proportion equation
   118,463 : 279,650 = 279,650 : x
2. Step 2: Convert to fraction form
   118,463/279,650 = 279,650/x
3. Step 3: Cross multiply
   118,463x = 279,650 × 279,650
4. Step 4: Simplify right side
   118,463x = 78,204,122,500
5. Step 5: Solve for x
   x = 78,204,122,500/118,463
6. Step 6: Final answer
   x = 660,156.53