Finding the Third Proportional to 53,538.75 and 72,117.75

Step by Step Solution

1. Step 1: Write the proportion equation
   53,538.75 : 72,117.75 = 72,117.75 : x
2. Step 2: Convert to fraction form
   53,538.75/72,117.75 = 72,117.75/x
3. Step 3: Cross multiply
   53,538.75x = 72,117.75 × 72,117.75
4. Step 4: Simplify right side
   53,538.75x = 5,200,969,865.06
5. Step 5: Solve for x
   x = 5,200,969,865.06/53,538.75
6. Step 6: Final answer
   x = 97,144.03