Finding the Third Proportional to 113,408 and 248,632

Step by Step Solution

1. Step 1: Write the proportion equation
   113,408 : 248,632 = 248,632 : x
2. Step 2: Convert to fraction form
   113,408/248,632 = 248,632/x
3. Step 3: Cross multiply
   113,408x = 248,632 × 248,632
4. Step 4: Simplify right side
   113,408x = 61,817,871,424
5. Step 5: Solve for x
   x = 61,817,871,424/113,408
6. Step 6: Final answer
   x = 545,092.69