Finding the Third Proportional to 528,732 and 851,142

Step by Step Solution

1. Step 1: Write the proportion equation
   528,732 : 851,142 = 851,142 : x
2. Step 2: Convert to fraction form
   528,732/851,142 = 851,142/x
3. Step 3: Cross multiply
   528,732x = 851,142 × 851,142
4. Step 4: Simplify right side
   528,732x = 724,442,704,164
5. Step 5: Solve for x
   x = 724,442,704,164/528,732
6. Step 6: Final answer
   x = 1,370,151.05