Finding the Third Proportional to 251,800.50 and 540,870

Step by Step Solution

1. Step 1: Write the proportion equation
   251,800.50 : 540,870 = 540,870 : x
2. Step 2: Convert to fraction form
   251,800.50/540,870 = 540,870/x
3. Step 3: Cross multiply
   251,800.50x = 540,870 × 540,870
4. Step 4: Simplify right side
   251,800.50x = 292,540,356,900
5. Step 5: Solve for x
   x = 292,540,356,900/251,800.50
6. Step 6: Final answer
   x = 1,161,794.19