Finding the Third Proportional to 142,002 and 311,076

Step by Step Solution

1. Step 1: Write the proportion equation
   142,002 : 311,076 = 311,076 : x
2. Step 2: Convert to fraction form
   142,002/311,076 = 311,076/x
3. Step 3: Cross multiply
   142,002x = 311,076 × 311,076
4. Step 4: Simplify right side
   142,002x = 96,768,277,776
5. Step 5: Solve for x
   x = 96,768,277,776/142,002
6. Step 6: Final answer
   x = 681,457.15