Finding the Third Proportional to 397,672 and 602,300

Step by Step Solution

1. Step 1: Write the proportion equation
   397,672 : 602,300 = 602,300 : x
2. Step 2: Convert to fraction form
   397,672/602,300 = 602,300/x
3. Step 3: Cross multiply
   397,672x = 602,300 × 602,300
4. Step 4: Simplify right side
   397,672x = 362,765,290,000
5. Step 5: Solve for x
   x = 362,765,290,000/397,672
6. Step 6: Final answer
   x = 912,222.36