Finding the Third Proportional to 870,830 and 1,345,073

Step by Step Solution

1. Step 1: Write the proportion equation
   870,830 : 1,345,073 = 1,345,073 : x
2. Step 2: Convert to fraction form
   870,830/1,345,073 = 1,345,073/x
3. Step 3: Cross multiply
   870,830x = 1,345,073 × 1,345,073
4. Step 4: Simplify right side
   870,830x = 1,809,221,375,329
5. Step 5: Solve for x
   x = 1,809,221,375,329/870,830
6. Step 6: Final answer
   x = 2,077,582.74