Finding the Third Proportional to 870,806 and 1,345,043

Step by Step Solution

1. Step 1: Write the proportion equation
   870,806 : 1,345,043 = 1,345,043 : x
2. Step 2: Convert to fraction form
   870,806/1,345,043 = 1,345,043/x
3. Step 3: Cross multiply
   870,806x = 1,345,043 × 1,345,043
4. Step 4: Simplify right side
   870,806x = 1,809,140,671,849
5. Step 5: Solve for x
   x = 1,809,140,671,849/870,806
6. Step 6: Final answer
   x = 2,077,547.32