Finding the Third Proportional to 72,615 and 151,881

Step by Step Solution

1. Step 1: Write the proportion equation
   72,615 : 151,881 = 151,881 : x
2. Step 2: Convert to fraction form
   72,615/151,881 = 151,881/x
3. Step 3: Cross multiply
   72,615x = 151,881 × 151,881
4. Step 4: Simplify right side
   72,615x = 23,067,838,161
5. Step 5: Solve for x
   x = 23,067,838,161/72,615
6. Step 6: Final answer
   x = 317,673.18