Finding the Third Proportional to 123,990 and 271,164

Step by Step Solution

1. Step 1: Write the proportion equation
   123,990 : 271,164 = 271,164 : x
2. Step 2: Convert to fraction form
   123,990/271,164 = 271,164/x
3. Step 3: Cross multiply
   123,990x = 271,164 × 271,164
4. Step 4: Simplify right side
   123,990x = 73,529,914,896
5. Step 5: Solve for x
   x = 73,529,914,896/123,990
6. Step 6: Final answer
   x = 593,031.01