Finding the Third Proportional to 123,879 and 265,248

Step by Step Solution

1. Step 1: Write the proportion equation
   123,879 : 265,248 = 265,248 : x
2. Step 2: Convert to fraction form
   123,879/265,248 = 265,248/x
3. Step 3: Cross multiply
   123,879x = 265,248 × 265,248
4. Step 4: Simplify right side
   123,879x = 70,356,501,504
5. Step 5: Solve for x
   x = 70,356,501,504/123,879
6. Step 6: Final answer
   x = 567,945.35