Finding the Third Proportional to 870,829 and 1,345,071

Step by Step Solution

1. Step 1: Write the proportion equation
   870,829 : 1,345,071 = 1,345,071 : x
2. Step 2: Convert to fraction form
   870,829/1,345,071 = 1,345,071/x
3. Step 3: Cross multiply
   870,829x = 1,345,071 × 1,345,071
4. Step 4: Simplify right side
   870,829x = 1,809,215,995,041
5. Step 5: Solve for x
   x = 1,809,215,995,041/870,829
6. Step 6: Final answer
   x = 2,077,578.94