Finding the Third Proportional to 660,150 and 978,237

Step by Step Solution

1. Step 1: Write the proportion equation
   660,150 : 978,237 = 978,237 : x
2. Step 2: Convert to fraction form
   660,150/978,237 = 978,237/x
3. Step 3: Cross multiply
   660,150x = 978,237 × 978,237
4. Step 4: Simplify right side
   660,150x = 956,947,628,169
5. Step 5: Solve for x
   x = 956,947,628,169/660,150
6. Step 6: Final answer
   x = 1,449,591.20