Finding the Third Proportional to 717,920 and 1,111,498

Step by Step Solution

1. Step 1: Write the proportion equation
   717,920 : 1,111,498 = 1,111,498 : x
2. Step 2: Convert to fraction form
   717,920/1,111,498 = 1,111,498/x
3. Step 3: Cross multiply
   717,920x = 1,111,498 × 1,111,498
4. Step 4: Simplify right side
   717,920x = 1,235,427,804,004
5. Step 5: Solve for x
   x = 1,235,427,804,004/717,920
6. Step 6: Final answer
   x = 1,720,843.28