Finding the Third Proportional to 53,116 and 72,173

Step by Step Solution

1. Step 1: Write the proportion equation
   53,116 : 72,173 = 72,173 : x
2. Step 2: Convert to fraction form
   53,116/72,173 = 72,173/x
3. Step 3: Cross multiply
   53,116x = 72,173 × 72,173
4. Step 4: Simplify right side
   53,116x = 5,208,941,929
5. Step 5: Solve for x
   x = 5,208,941,929/53,116
6. Step 6: Final answer
   x = 98,067.29