Finding the Third Proportional to 72,880 and 151,976

Step by Step Solution

1. Step 1: Write the proportion equation
   72,880 : 151,976 = 151,976 : x
2. Step 2: Convert to fraction form
   72,880/151,976 = 151,976/x
3. Step 3: Cross multiply
   72,880x = 151,976 × 151,976
4. Step 4: Simplify right side
   72,880x = 23,096,704,576
5. Step 5: Solve for x
   x = 23,096,704,576/72,880
6. Step 6: Final answer
   x = 316,914.17