Finding the Third Proportional to 533,643.19 and 853,514.72

Step by Step Solution

1. Step 1: Write the proportion equation
   533,643.19 : 853,514.72 = 853,514.72 : x
2. Step 2: Convert to fraction form
   533,643.19/853,514.72 = 853,514.72/x
3. Step 3: Cross multiply
   533,643.19x = 853,514.72 × 853,514.72
4. Step 4: Simplify right side
   533,643.19x = 728,487,375,122.89
5. Step 5: Solve for x
   x = 728,487,375,122.89/533,643.19
6. Step 6: Final answer
   x = 1,365,120.73