Finding the Third Proportional to 427,960 and 662,300

Step by Step Solution

1. Step 1: Write the proportion equation
   427,960 : 662,300 = 662,300 : x
2. Step 2: Convert to fraction form
   427,960/662,300 = 662,300/x
3. Step 3: Cross multiply
   427,960x = 662,300 × 662,300
4. Step 4: Simplify right side
   427,960x = 438,641,290,000
5. Step 5: Solve for x
   x = 438,641,290,000/427,960
6. Step 6: Final answer
   x = 1,024,958.62