Finding the Third Proportional to 806,418 and 1,191,240

Step by Step Solution

1. Step 1: Write the proportion equation
   806,418 : 1,191,240 = 1,191,240 : x
2. Step 2: Convert to fraction form
   806,418/1,191,240 = 1,191,240/x
3. Step 3: Cross multiply
   806,418x = 1,191,240 × 1,191,240
4. Step 4: Simplify right side
   806,418x = 1,419,052,737,600
5. Step 5: Solve for x
   x = 1,419,052,737,600/806,418
6. Step 6: Final answer
   x = 1,759,698.74