Finding the Third Proportional to 379,192 and 805,040

Step by Step Solution

1. Step 1: Write the proportion equation
   379,192 : 805,040 = 805,040 : x
2. Step 2: Convert to fraction form
   379,192/805,040 = 805,040/x
3. Step 3: Cross multiply
   379,192x = 805,040 × 805,040
4. Step 4: Simplify right side
   379,192x = 648,089,401,600
5. Step 5: Solve for x
   x = 648,089,401,600/379,192
6. Step 6: Final answer
   x = 1,709,132.58