Finding the Third Proportional to 870,683 and 1,345,427

Step by Step Solution

1. Step 1: Write the proportion equation
   870,683 : 1,345,427 = 1,345,427 : x
2. Step 2: Convert to fraction form
   870,683/1,345,427 = 1,345,427/x
3. Step 3: Cross multiply
   870,683x = 1,345,427 × 1,345,427
4. Step 4: Simplify right side
   870,683x = 1,810,173,812,329
5. Step 5: Solve for x
   x = 1,810,173,812,329/870,683
6. Step 6: Final answer
   x = 2,079,027.40