Finding the Third Proportional to 142,484 and 300,988

Step by Step Solution

1. Step 1: Write the proportion equation
   142,484 : 300,988 = 300,988 : x
2. Step 2: Convert to fraction form
   142,484/300,988 = 300,988/x
3. Step 3: Cross multiply
   142,484x = 300,988 × 300,988
4. Step 4: Simplify right side
   142,484x = 90,593,776,144
5. Step 5: Solve for x
   x = 90,593,776,144/142,484
6. Step 6: Final answer
   x = 635,817.19