Finding the Third Proportional to 142,168 and 299,088

Step by Step Solution

1. Step 1: Write the proportion equation
   142,168 : 299,088 = 299,088 : x
2. Step 2: Convert to fraction form
   142,168/299,088 = 299,088/x
3. Step 3: Cross multiply
   142,168x = 299,088 × 299,088
4. Step 4: Simplify right side
   142,168x = 89,453,631,744
5. Step 5: Solve for x
   x = 89,453,631,744/142,168
6. Step 6: Final answer
   x = 629,210.73