Finding the Third Proportional to 118,368 and 258,849

Step by Step Solution

1. Step 1: Write the proportion equation
   118,368 : 258,849 = 258,849 : x
2. Step 2: Convert to fraction form
   118,368/258,849 = 258,849/x
3. Step 3: Cross multiply
   118,368x = 258,849 × 258,849
4. Step 4: Simplify right side
   118,368x = 67,002,804,801
5. Step 5: Solve for x
   x = 67,002,804,801/118,368
6. Step 6: Final answer
   x = 566,055.06