Finding the Third Proportional to 86,935.50 and 105,593.50

Step by Step Solution

1. Step 1: Write the proportion equation
   86,935.50 : 105,593.50 = 105,593.50 : x
2. Step 2: Convert to fraction form
   86,935.50/105,593.50 = 105,593.50/x
3. Step 3: Cross multiply
   86,935.50x = 105,593.50 × 105,593.50
4. Step 4: Simplify right side
   86,935.50x = 11,149,987,242.25
5. Step 5: Solve for x
   x = 11,149,987,242.25/86,935.50
6. Step 6: Final answer
   x = 128,255.86