Finding the Third Proportional to 83,760.75 and 129,530.25

Step by Step Solution

1. Step 1: Write the proportion equation
   83,760.75 : 129,530.25 = 129,530.25 : x
2. Step 2: Convert to fraction form
   83,760.75/129,530.25 = 129,530.25/x
3. Step 3: Cross multiply
   83,760.75x = 129,530.25 × 129,530.25
4. Step 4: Simplify right side
   83,760.75x = 16,778,085,665.06
5. Step 5: Solve for x
   x = 16,778,085,665.06/83,760.75
6. Step 6: Final answer
   x = 200,309.64