Finding the Third Proportional to 807,723 and 1,267,191

Step by Step Solution

1. Step 1: Write the proportion equation
   807,723 : 1,267,191 = 1,267,191 : x
2. Step 2: Convert to fraction form
   807,723/1,267,191 = 1,267,191/x
3. Step 3: Cross multiply
   807,723x = 1,267,191 × 1,267,191
4. Step 4: Simplify right side
   807,723x = 1,605,773,030,481
5. Step 5: Solve for x
   x = 1,605,773,030,481/807,723
6. Step 6: Final answer
   x = 1,988,024.40