Finding the Third Proportional to 210,278 and 459,404

Step by Step Solution

1. Step 1: Write the proportion equation
   210,278 : 459,404 = 459,404 : x
2. Step 2: Convert to fraction form
   210,278/459,404 = 459,404/x
3. Step 3: Cross multiply
   210,278x = 459,404 × 459,404
4. Step 4: Simplify right side
   210,278x = 211,052,035,216
5. Step 5: Solve for x
   x = 211,052,035,216/210,278
6. Step 6: Final answer
   x = 1,003,681.01