Finding the Third Proportional to 209,156 and 459,314

Step by Step Solution

1. Step 1: Write the proportion equation
   209,156 : 459,314 = 459,314 : x
2. Step 2: Convert to fraction form
   209,156/459,314 = 459,314/x
3. Step 3: Cross multiply
   209,156x = 459,314 × 459,314
4. Step 4: Simplify right side
   209,156x = 210,969,350,596
5. Step 5: Solve for x
   x = 210,969,350,596/209,156
6. Step 6: Final answer
   x = 1,008,669.85