Finding the Third Proportional to 72,358 and 150,171

Step by Step Solution

1. Step 1: Write the proportion equation
   72,358 : 150,171 = 150,171 : x
2. Step 2: Convert to fraction form
   72,358/150,171 = 150,171/x
3. Step 3: Cross multiply
   72,358x = 150,171 × 150,171
4. Step 4: Simplify right side
   72,358x = 22,551,329,241
5. Step 5: Solve for x
   x = 22,551,329,241/72,358
6. Step 6: Final answer
   x = 311,663.25