Finding the Third Proportional to 67,188 and 147,144

Step by Step Solution

1. Step 1: Write the proportion equation
   67,188 : 147,144 = 147,144 : x
2. Step 2: Convert to fraction form
   67,188/147,144 = 147,144/x
3. Step 3: Cross multiply
   67,188x = 147,144 × 147,144
4. Step 4: Simplify right side
   67,188x = 21,651,356,736
5. Step 5: Solve for x
   x = 21,651,356,736/67,188
6. Step 6: Final answer
   x = 322,250.35