Finding the Third Proportional to 717,909 and 1,111,481

Step by Step Solution

1. Step 1: Write the proportion equation
   717,909 : 1,111,481 = 1,111,481 : x
2. Step 2: Convert to fraction form
   717,909/1,111,481 = 1,111,481/x
3. Step 3: Cross multiply
   717,909x = 1,111,481 × 1,111,481
4. Step 4: Simplify right side
   717,909x = 1,235,390,013,361
5. Step 5: Solve for x
   x = 1,235,390,013,361/717,909
6. Step 6: Final answer
   x = 1,720,817.00