Finding the Third Proportional to 245,806 and 539,116

Step by Step Solution

1. Step 1: Write the proportion equation
   245,806 : 539,116 = 539,116 : x
2. Step 2: Convert to fraction form
   245,806/539,116 = 539,116/x
3. Step 3: Cross multiply
   245,806x = 539,116 × 539,116
4. Step 4: Simplify right side
   245,806x = 290,646,061,456
5. Step 5: Solve for x
   x = 290,646,061,456/245,806
6. Step 6: Final answer
   x = 1,182,420.53