Finding the Third Proportional to 174,016 and 379,990

Step by Step Solution

1. Step 1: Write the proportion equation
   174,016 : 379,990 = 379,990 : x
2. Step 2: Convert to fraction form
   174,016/379,990 = 379,990/x
3. Step 3: Cross multiply
   174,016x = 379,990 × 379,990
4. Step 4: Simplify right side
   174,016x = 144,392,400,100
5. Step 5: Solve for x
   x = 144,392,400,100/174,016
6. Step 6: Final answer
   x = 829,765.08