Finding the Third Proportional to 72,719 and 151,664

Step by Step Solution

1. Step 1: Write the proportion equation
   72,719 : 151,664 = 151,664 : x
2. Step 2: Convert to fraction form
   72,719/151,664 = 151,664/x
3. Step 3: Cross multiply
   72,719x = 151,664 × 151,664
4. Step 4: Simplify right side
   72,719x = 23,001,968,896
5. Step 5: Solve for x
   x = 23,001,968,896/72,719
6. Step 6: Final answer
   x = 316,313.05