Finding the Third Proportional to 809,738 and 1,153,488

Step by Step Solution

1. Step 1: Write the proportion equation
   809,738 : 1,153,488 = 1,153,488 : x
2. Step 2: Convert to fraction form
   809,738/1,153,488 = 1,153,488/x
3. Step 3: Cross multiply
   809,738x = 1,153,488 × 1,153,488
4. Step 4: Simplify right side
   809,738x = 1,330,534,566,144
5. Step 5: Solve for x
   x = 1,330,534,566,144/809,738
6. Step 6: Final answer
   x = 1,643,166.76