Finding the Third Proportional to 57,512 and 123,664

Step by Step Solution

1. Step 1: Write the proportion equation
   57,512 : 123,664 = 123,664 : x
2. Step 2: Convert to fraction form
   57,512/123,664 = 123,664/x
3. Step 3: Cross multiply
   57,512x = 123,664 × 123,664
4. Step 4: Simplify right side
   57,512x = 15,292,784,896
5. Step 5: Solve for x
   x = 15,292,784,896/57,512
6. Step 6: Final answer
   x = 265,905.98