Finding the Third Proportional to 660,648 and 1,447,512

Step by Step Solution

1. Step 1: Write the proportion equation
   660,648 : 1,447,512 = 1,447,512 : x
2. Step 2: Convert to fraction form
   660,648/1,447,512 = 1,447,512/x
3. Step 3: Cross multiply
   660,648x = 1,447,512 × 1,447,512
4. Step 4: Simplify right side
   660,648x = 2,095,290,990,144
5. Step 5: Solve for x
   x = 2,095,290,990,144/660,648
6. Step 6: Final answer
   x = 3,171,569.41