Finding the Third Proportional to 123,264 and 252,369

Step by Step Solution

1. Step 1: Write the proportion equation
   123,264 : 252,369 = 252,369 : x
2. Step 2: Convert to fraction form
   123,264/252,369 = 252,369/x
3. Step 3: Cross multiply
   123,264x = 252,369 × 252,369
4. Step 4: Simplify right side
   123,264x = 63,690,112,161
5. Step 5: Solve for x
   x = 63,690,112,161/123,264
6. Step 6: Final answer
   x = 516,696.78