Finding the Third Proportional to 215,599.50 and 503,577

Step by Step Solution

1. Step 1: Write the proportion equation
   215,599.50 : 503,577 = 503,577 : x
2. Step 2: Convert to fraction form
   215,599.50/503,577 = 503,577/x
3. Step 3: Cross multiply
   215,599.50x = 503,577 × 503,577
4. Step 4: Simplify right side
   215,599.50x = 253,589,794,929
5. Step 5: Solve for x
   x = 253,589,794,929/215,599.50
6. Step 6: Final answer
   x = 1,176,207.71