Finding the Third Proportional to 754,665 and 1,129,009

Step by Step Solution

1. Step 1: Write the proportion equation
   754,665 : 1,129,009 = 1,129,009 : x
2. Step 2: Convert to fraction form
   754,665/1,129,009 = 1,129,009/x
3. Step 3: Cross multiply
   754,665x = 1,129,009 × 1,129,009
4. Step 4: Simplify right side
   754,665x = 1,274,661,322,081
5. Step 5: Solve for x
   x = 1,274,661,322,081/754,665
6. Step 6: Final answer
   x = 1,689,042.58