Finding the Third Proportional to 541,980 and 805,140

Step by Step Solution

1. Step 1: Write the proportion equation
   541,980 : 805,140 = 805,140 : x
2. Step 2: Convert to fraction form
   541,980/805,140 = 805,140/x
3. Step 3: Cross multiply
   541,980x = 805,140 × 805,140
4. Step 4: Simplify right side
   541,980x = 648,250,419,600
5. Step 5: Solve for x
   x = 648,250,419,600/541,980
6. Step 6: Final answer
   x = 1,196,078.12