Finding the Third Proportional to 142,326 and 308,030

Step by Step Solution

1. Step 1: Write the proportion equation
   142,326 : 308,030 = 308,030 : x
2. Step 2: Convert to fraction form
   142,326/308,030 = 308,030/x
3. Step 3: Cross multiply
   142,326x = 308,030 × 308,030
4. Step 4: Simplify right side
   142,326x = 94,882,480,900
5. Step 5: Solve for x
   x = 94,882,480,900/142,326
6. Step 6: Final answer
   x = 666,655.99