Finding the Third Proportional to 211,364 and 498,442

Step by Step Solution

1. Step 1: Write the proportion equation
   211,364 : 498,442 = 498,442 : x
2. Step 2: Convert to fraction form
   211,364/498,442 = 498,442/x
3. Step 3: Cross multiply
   211,364x = 498,442 × 498,442
4. Step 4: Simplify right side
   211,364x = 248,444,427,364
5. Step 5: Solve for x
   x = 248,444,427,364/211,364
6. Step 6: Final answer
   x = 1,175,433.98