Finding the Third Proportional to 56,272 and 123,000

Step by Step Solution

1. Step 1: Write the proportion equation
   56,272 : 123,000 = 123,000 : x
2. Step 2: Convert to fraction form
   56,272/123,000 = 123,000/x
3. Step 3: Cross multiply
   56,272x = 123,000 × 123,000
4. Step 4: Simplify right side
   56,272x = 15,129,000,000
5. Step 5: Solve for x
   x = 15,129,000,000/56,272
6. Step 6: Final answer
   x = 268,854.85