Finding the Third Proportional to 858,486 and 1,165,938

Step by Step Solution

1. Step 1: Write the proportion equation
   858,486 : 1,165,938 = 1,165,938 : x
2. Step 2: Convert to fraction form
   858,486/1,165,938 = 1,165,938/x
3. Step 3: Cross multiply
   858,486x = 1,165,938 × 1,165,938
4. Step 4: Simplify right side
   858,486x = 1,359,411,419,844
5. Step 5: Solve for x
   x = 1,359,411,419,844/858,486
6. Step 6: Final answer
   x = 1,583,498.65