Finding the Third Proportional to 870,687 and 1,345,433.50

Step by Step Solution

1. Step 1: Write the proportion equation
   870,687 : 1,345,433.50 = 1,345,433.50 : x
2. Step 2: Convert to fraction form
   870,687/1,345,433.50 = 1,345,433.50/x
3. Step 3: Cross multiply
   870,687x = 1,345,433.50 × 1,345,433.50
4. Step 4: Simplify right side
   870,687x = 1,810,191,302,922.25
5. Step 5: Solve for x
   x = 1,810,191,302,922.25/870,687
6. Step 6: Final answer
   x = 2,079,037.94