Finding the Third Proportional to 34,615 and 72,874

Step by Step Solution

1. Step 1: Write the proportion equation
   34,615 : 72,874 = 72,874 : x
2. Step 2: Convert to fraction form
   34,615/72,874 = 72,874/x
3. Step 3: Cross multiply
   34,615x = 72,874 × 72,874
4. Step 4: Simplify right side
   34,615x = 5,310,619,876
5. Step 5: Solve for x
   x = 5,310,619,876/34,615
6. Step 6: Final answer
   x = 153,419.61