Finding the Third Proportional to 210,892 and 497,818

Step by Step Solution

1. Step 1: Write the proportion equation
   210,892 : 497,818 = 497,818 : x
2. Step 2: Convert to fraction form
   210,892/497,818 = 497,818/x
3. Step 3: Cross multiply
   210,892x = 497,818 × 497,818
4. Step 4: Simplify right side
   210,892x = 247,822,761,124
5. Step 5: Solve for x
   x = 247,822,761,124/210,892
6. Step 6: Final answer
   x = 1,175,116.94