Finding the Third Proportional to 238,848 and 514,992

Step by Step Solution

1. Step 1: Write the proportion equation
   238,848 : 514,992 = 514,992 : x
2. Step 2: Convert to fraction form
   238,848/514,992 = 514,992/x
3. Step 3: Cross multiply
   238,848x = 514,992 × 514,992
4. Step 4: Simplify right side
   238,848x = 265,216,760,064
5. Step 5: Solve for x
   x = 265,216,760,064/238,848
6. Step 6: Final answer
   x = 1,110,399.75