Finding the Third Proportional to 665,988 and 1,456,312

Step by Step Solution

1. Step 1: Write the proportion equation
   665,988 : 1,456,312 = 1,456,312 : x
2. Step 2: Convert to fraction form
   665,988/1,456,312 = 1,456,312/x
3. Step 3: Cross multiply
   665,988x = 1,456,312 × 1,456,312
4. Step 4: Simplify right side
   665,988x = 2,120,844,641,344
5. Step 5: Solve for x
   x = 2,120,844,641,344/665,988
6. Step 6: Final answer
   x = 3,184,508.79