Finding the Third Proportional to 48,288 and 70,648

Step by Step Solution

1. Step 1: Write the proportion equation
   48,288 : 70,648 = 70,648 : x
2. Step 2: Convert to fraction form
   48,288/70,648 = 70,648/x
3. Step 3: Cross multiply
   48,288x = 70,648 × 70,648
4. Step 4: Simplify right side
   48,288x = 4,991,139,904
5. Step 5: Solve for x
   x = 4,991,139,904/48,288
6. Step 6: Final answer
   x = 103,361.91