Finding the Third Proportional to 72,718 and 154,226

Step by Step Solution

1. Step 1: Write the proportion equation
   72,718 : 154,226 = 154,226 : x
2. Step 2: Convert to fraction form
   72,718/154,226 = 154,226/x
3. Step 3: Cross multiply
   72,718x = 154,226 × 154,226
4. Step 4: Simplify right side
   72,718x = 23,785,659,076
5. Step 5: Solve for x
   x = 23,785,659,076/72,718
6. Step 6: Final answer
   x = 327,094.52