Finding the Third Proportional to 683,212 and 1,091,442

Step by Step Solution

1. Step 1: Write the proportion equation
   683,212 : 1,091,442 = 1,091,442 : x
2. Step 2: Convert to fraction form
   683,212/1,091,442 = 1,091,442/x
3. Step 3: Cross multiply
   683,212x = 1,091,442 × 1,091,442
4. Step 4: Simplify right side
   683,212x = 1,191,245,639,364
5. Step 5: Solve for x
   x = 1,191,245,639,364/683,212
6. Step 6: Final answer
   x = 1,743,595.90