Finding the Third Proportional to 56,003 and 124,521

Step by Step Solution

1. Step 1: Write the proportion equation
   56,003 : 124,521 = 124,521 : x
2. Step 2: Convert to fraction form
   56,003/124,521 = 124,521/x
3. Step 3: Cross multiply
   56,003x = 124,521 × 124,521
4. Step 4: Simplify right side
   56,003x = 15,505,479,441
5. Step 5: Solve for x
   x = 15,505,479,441/56,003
6. Step 6: Final answer
   x = 276,868.73