Finding the Third Proportional to 142,658 and 303,748

Step by Step Solution

1. Step 1: Write the proportion equation
   142,658 : 303,748 = 303,748 : x
2. Step 2: Convert to fraction form
   142,658/303,748 = 303,748/x
3. Step 3: Cross multiply
   142,658x = 303,748 × 303,748
4. Step 4: Simplify right side
   142,658x = 92,262,847,504
5. Step 5: Solve for x
   x = 92,262,847,504/142,658
6. Step 6: Final answer
   x = 646,741.49