Finding the Third Proportional to 210,412 and 459,380

Step by Step Solution

1. Step 1: Write the proportion equation
   210,412 : 459,380 = 459,380 : x
2. Step 2: Convert to fraction form
   210,412/459,380 = 459,380/x
3. Step 3: Cross multiply
   210,412x = 459,380 × 459,380
4. Step 4: Simplify right side
   210,412x = 211,029,984,400
5. Step 5: Solve for x
   x = 211,029,984,400/210,412
6. Step 6: Final answer
   x = 1,002,937.02