Finding the Third Proportional to 858,488 and 1,165,940

Step by Step Solution

1. Step 1: Write the proportion equation
   858,488 : 1,165,940 = 1,165,940 : x
2. Step 2: Convert to fraction form
   858,488/1,165,940 = 1,165,940/x
3. Step 3: Cross multiply
   858,488x = 1,165,940 × 1,165,940
4. Step 4: Simplify right side
   858,488x = 1,359,416,083,600
5. Step 5: Solve for x
   x = 1,359,416,083,600/858,488
6. Step 6: Final answer
   x = 1,583,500.39