Finding the Third Proportional to 870,804 and 1,345,040

Step by Step Solution

1. Step 1: Write the proportion equation
   870,804 : 1,345,040 = 1,345,040 : x
2. Step 2: Convert to fraction form
   870,804/1,345,040 = 1,345,040/x
3. Step 3: Cross multiply
   870,804x = 1,345,040 × 1,345,040
4. Step 4: Simplify right side
   870,804x = 1,809,132,601,600
5. Step 5: Solve for x
   x = 1,809,132,601,600/870,804
6. Step 6: Final answer
   x = 2,077,542.82