Finding the Third Proportional to 86,900.50 and 131,577

Step by Step Solution

1. Step 1: Write the proportion equation
   86,900.50 : 131,577 = 131,577 : x
2. Step 2: Convert to fraction form
   86,900.50/131,577 = 131,577/x
3. Step 3: Cross multiply
   86,900.50x = 131,577 × 131,577
4. Step 4: Simplify right side
   86,900.50x = 17,312,506,929
5. Step 5: Solve for x
   x = 17,312,506,929/86,900.50
6. Step 6: Final answer
   x = 199,222.18