Finding the Third Proportional to 53,168 and 72,238

Step by Step Solution

1. Step 1: Write the proportion equation
   53,168 : 72,238 = 72,238 : x
2. Step 2: Convert to fraction form
   53,168/72,238 = 72,238/x
3. Step 3: Cross multiply
   53,168x = 72,238 × 72,238
4. Step 4: Simplify right side
   53,168x = 5,218,328,644
5. Step 5: Solve for x
   x = 5,218,328,644/53,168
6. Step 6: Final answer
   x = 98,147.92