Finding the Third Proportional to 254,185 and 501,992

Step by Step Solution

1. Step 1: Write the proportion equation
   254,185 : 501,992 = 501,992 : x
2. Step 2: Convert to fraction form
   254,185/501,992 = 501,992/x
3. Step 3: Cross multiply
   254,185x = 501,992 × 501,992
4. Step 4: Simplify right side
   254,185x = 251,995,968,064
5. Step 5: Solve for x
   x = 251,995,968,064/254,185
6. Step 6: Final answer
   x = 991,388.04