Finding the Third Proportional to 92,403 and 212,144

Step by Step Solution

1. Step 1: Write the proportion equation
   92,403 : 212,144 = 212,144 : x
2. Step 2: Convert to fraction form
   92,403/212,144 = 212,144/x
3. Step 3: Cross multiply
   92,403x = 212,144 × 212,144
4. Step 4: Simplify right side
   92,403x = 45,005,076,736
5. Step 5: Solve for x
   x = 45,005,076,736/92,403
6. Step 6: Final answer
   x = 487,052.12