Finding the Third Proportional to 142,956 and 272,952

Step by Step Solution

1. Step 1: Write the proportion equation
   142,956 : 272,952 = 272,952 : x
2. Step 2: Convert to fraction form
   142,956/272,952 = 272,952/x
3. Step 3: Cross multiply
   142,956x = 272,952 × 272,952
4. Step 4: Simplify right side
   142,956x = 74,502,794,304
5. Step 5: Solve for x
   x = 74,502,794,304/142,956
6. Step 6: Final answer
   x = 521,158.92