Finding the Third Proportional to 72,931 and 150,917

Step by Step Solution

1. Step 1: Write the proportion equation
   72,931 : 150,917 = 150,917 : x
2. Step 2: Convert to fraction form
   72,931/150,917 = 150,917/x
3. Step 3: Cross multiply
   72,931x = 150,917 × 150,917
4. Step 4: Simplify right side
   72,931x = 22,775,940,889
5. Step 5: Solve for x
   x = 22,775,940,889/72,931
6. Step 6: Final answer
   x = 312,294.37