Finding the Third Proportional to 142,328 and 308,034

Step by Step Solution

1. Step 1: Write the proportion equation
   142,328 : 308,034 = 308,034 : x
2. Step 2: Convert to fraction form
   142,328/308,034 = 308,034/x
3. Step 3: Cross multiply
   142,328x = 308,034 × 308,034
4. Step 4: Simplify right side
   142,328x = 94,884,945,156
5. Step 5: Solve for x
   x = 94,884,945,156/142,328
6. Step 6: Final answer
   x = 666,663.94