Finding the Third Proportional to 175,510 and 379,039

Step by Step Solution

1. Step 1: Write the proportion equation
   175,510 : 379,039 = 379,039 : x
2. Step 2: Convert to fraction form
   175,510/379,039 = 379,039/x
3. Step 3: Cross multiply
   175,510x = 379,039 × 379,039
4. Step 4: Simplify right side
   175,510x = 143,670,563,521
5. Step 5: Solve for x
   x = 143,670,563,521/175,510
6. Step 6: Final answer
   x = 818,589.05