Finding the Third Proportional to 142,175 and 300,658

Step by Step Solution

1. Step 1: Write the proportion equation
   142,175 : 300,658 = 300,658 : x
2. Step 2: Convert to fraction form
   142,175/300,658 = 300,658/x
3. Step 3: Cross multiply
   142,175x = 300,658 × 300,658
4. Step 4: Simplify right side
   142,175x = 90,395,232,964
5. Step 5: Solve for x
   x = 90,395,232,964/142,175
6. Step 6: Final answer
   x = 635,802.59