Finding the Third Proportional to 851,442 and 1,309,116

Step by Step Solution

1. Step 1: Write the proportion equation
   851,442 : 1,309,116 = 1,309,116 : x
2. Step 2: Convert to fraction form
   851,442/1,309,116 = 1,309,116/x
3. Step 3: Cross multiply
   851,442x = 1,309,116 × 1,309,116
4. Step 4: Simplify right side
   851,442x = 1,713,784,701,456
5. Step 5: Solve for x
   x = 1,713,784,701,456/851,442
6. Step 6: Final answer
   x = 2,012,802.64