Finding the Third Proportional to 72,615 and 160,458

Step by Step Solution

1. Step 1: Write the proportion equation
   72,615 : 160,458 = 160,458 : x
2. Step 2: Convert to fraction form
   72,615/160,458 = 160,458/x
3. Step 3: Cross multiply
   72,615x = 160,458 × 160,458
4. Step 4: Simplify right side
   72,615x = 25,746,769,764
5. Step 5: Solve for x
   x = 25,746,769,764/72,615
6. Step 6: Final answer
   x = 354,565.44