Finding the Third Proportional to 72,656 and 153,955

Step by Step Solution

1. Step 1: Write the proportion equation
   72,656 : 153,955 = 153,955 : x
2. Step 2: Convert to fraction form
   72,656/153,955 = 153,955/x
3. Step 3: Cross multiply
   72,656x = 153,955 × 153,955
4. Step 4: Simplify right side
   72,656x = 23,702,142,025
5. Step 5: Solve for x
   x = 23,702,142,025/72,656
6. Step 6: Final answer
   x = 326,224.15