Finding the Third Proportional to 54,158 and 72,447

Step by Step Solution

1. Step 1: Write the proportion equation
   54,158 : 72,447 = 72,447 : x
2. Step 2: Convert to fraction form
   54,158/72,447 = 72,447/x
3. Step 3: Cross multiply
   54,158x = 72,447 × 72,447
4. Step 4: Simplify right side
   54,158x = 5,248,567,809
5. Step 5: Solve for x
   x = 5,248,567,809/54,158
6. Step 6: Final answer
   x = 96,912.14