Finding the Third Proportional to 835,414 and 1,345,139

Step by Step Solution

1. Step 1: Write the proportion equation
   835,414 : 1,345,139 = 1,345,139 : x
2. Step 2: Convert to fraction form
   835,414/1,345,139 = 1,345,139/x
3. Step 3: Cross multiply
   835,414x = 1,345,139 × 1,345,139
4. Step 4: Simplify right side
   835,414x = 1,809,398,929,321
5. Step 5: Solve for x
   x = 1,809,398,929,321/835,414
6. Step 6: Final answer
   x = 2,165,870.97