Finding the Third Proportional to 123,284 and 265,558

Step by Step Solution

1. Step 1: Write the proportion equation
   123,284 : 265,558 = 265,558 : x
2. Step 2: Convert to fraction form
   123,284/265,558 = 265,558/x
3. Step 3: Cross multiply
   123,284x = 265,558 × 265,558
4. Step 4: Simplify right side
   123,284x = 70,521,051,364
5. Step 5: Solve for x
   x = 70,521,051,364/123,284
6. Step 6: Final answer
   x = 572,021.12