Finding the Third Proportional to 238,840 and 514,976

Step by Step Solution

1. Step 1: Write the proportion equation
   238,840 : 514,976 = 514,976 : x
2. Step 2: Convert to fraction form
   238,840/514,976 = 514,976/x
3. Step 3: Cross multiply
   238,840x = 514,976 × 514,976
4. Step 4: Simplify right side
   238,840x = 265,200,280,576
5. Step 5: Solve for x
   x = 265,200,280,576/238,840
6. Step 6: Final answer
   x = 1,110,367.95