Finding the Third Proportional to 142,330 and 308,035

Step by Step Solution

1. Step 1: Write the proportion equation
   142,330 : 308,035 = 308,035 : x
2. Step 2: Convert to fraction form
   142,330/308,035 = 308,035/x
3. Step 3: Cross multiply
   142,330x = 308,035 × 308,035
4. Step 4: Simplify right side
   142,330x = 94,885,561,225
5. Step 5: Solve for x
   x = 94,885,561,225/142,330
6. Step 6: Final answer
   x = 666,658.90