Finding the Third Proportional to 870,816 and 1,345,064

Step by Step Solution

1. Step 1: Write the proportion equation
   870,816 : 1,345,064 = 1,345,064 : x
2. Step 2: Convert to fraction form
   870,816/1,345,064 = 1,345,064/x
3. Step 3: Cross multiply
   870,816x = 1,345,064 × 1,345,064
4. Step 4: Simplify right side
   870,816x = 1,809,197,164,096
5. Step 5: Solve for x
   x = 1,809,197,164,096/870,816
6. Step 6: Final answer
   x = 2,077,588.34