Finding the Third Proportional to 519,979.50 and 1,090,260

Step by Step Solution

1. Step 1: Write the proportion equation
   519,979.50 : 1,090,260 = 1,090,260 : x
2. Step 2: Convert to fraction form
   519,979.50/1,090,260 = 1,090,260/x
3. Step 3: Cross multiply
   519,979.50x = 1,090,260 × 1,090,260
4. Step 4: Simplify right side
   519,979.50x = 1,188,666,867,600
5. Step 5: Solve for x
   x = 1,188,666,867,600/519,979.50
6. Step 6: Final answer
   x = 2,285,987.94