Finding the Third Proportional to 78,984 and 173,979

Step by Step Solution

1. Step 1: Write the proportion equation
   78,984 : 173,979 = 173,979 : x
2. Step 2: Convert to fraction form
   78,984/173,979 = 173,979/x
3. Step 3: Cross multiply
   78,984x = 173,979 × 173,979
4. Step 4: Simplify right side
   78,984x = 30,268,692,441
5. Step 5: Solve for x
   x = 30,268,692,441/78,984
6. Step 6: Final answer
   x = 383,225.62