Finding the Third Proportional to 210,912 and 497,868

Step by Step Solution

1. Step 1: Write the proportion equation
   210,912 : 497,868 = 497,868 : x
2. Step 2: Convert to fraction form
   210,912/497,868 = 497,868/x
3. Step 3: Cross multiply
   210,912x = 497,868 × 497,868
4. Step 4: Simplify right side
   210,912x = 247,872,545,424
5. Step 5: Solve for x
   x = 247,872,545,424/210,912
6. Step 6: Final answer
   x = 1,175,241.55