Finding the Third Proportional to 53,617.50 and 79,512.75

Step by Step Solution

1. Step 1: Write the proportion equation
   53,617.50 : 79,512.75 = 79,512.75 : x
2. Step 2: Convert to fraction form
   53,617.50/79,512.75 = 79,512.75/x
3. Step 3: Cross multiply
   53,617.50x = 79,512.75 × 79,512.75
4. Step 4: Simplify right side
   53,617.50x = 6,322,277,412.56
5. Step 5: Solve for x
   x = 6,322,277,412.56/53,617.50
6. Step 6: Final answer
   x = 117,914.44