Finding the Third Proportional to 53,151 and 72,216

Step by Step Solution

1. Step 1: Write the proportion equation
   53,151 : 72,216 = 72,216 : x
2. Step 2: Convert to fraction form
   53,151/72,216 = 72,216/x
3. Step 3: Cross multiply
   53,151x = 72,216 × 72,216
4. Step 4: Simplify right side
   53,151x = 5,215,150,656
5. Step 5: Solve for x
   x = 5,215,150,656/53,151
6. Step 6: Final answer
   x = 98,119.52