Finding the Third Proportional to 142,344 and 308,064

Step by Step Solution

1. Step 1: Write the proportion equation
   142,344 : 308,064 = 308,064 : x
2. Step 2: Convert to fraction form
   142,344/308,064 = 308,064/x
3. Step 3: Cross multiply
   142,344x = 308,064 × 308,064
4. Step 4: Simplify right side
   142,344x = 94,903,428,096
5. Step 5: Solve for x
   x = 94,903,428,096/142,344
6. Step 6: Final answer
   x = 666,718.85