Finding the Third Proportional to 100,456 and 151,979

Step by Step Solution

1. Step 1: Write the proportion equation
   100,456 : 151,979 = 151,979 : x
2. Step 2: Convert to fraction form
   100,456/151,979 = 151,979/x
3. Step 3: Cross multiply
   100,456x = 151,979 × 151,979
4. Step 4: Simplify right side
   100,456x = 23,097,616,441
5. Step 5: Solve for x
   x = 23,097,616,441/100,456
6. Step 6: Final answer
   x = 229,927.69