Finding the Third Proportional to 210,900 and 497,838

Step by Step Solution

1. Step 1: Write the proportion equation
   210,900 : 497,838 = 497,838 : x
2. Step 2: Convert to fraction form
   210,900/497,838 = 497,838/x
3. Step 3: Cross multiply
   210,900x = 497,838 × 497,838
4. Step 4: Simplify right side
   210,900x = 247,842,674,244
5. Step 5: Solve for x
   x = 247,842,674,244/210,900
6. Step 6: Final answer
   x = 1,175,166.78