Finding the Third Proportional to 359,834 and 528,086

Step by Step Solution

1. Step 1: Write the proportion equation
   359,834 : 528,086 = 528,086 : x
2. Step 2: Convert to fraction form
   359,834/528,086 = 528,086/x
3. Step 3: Cross multiply
   359,834x = 528,086 × 528,086
4. Step 4: Simplify right side
   359,834x = 278,874,823,396
5. Step 5: Solve for x
   x = 278,874,823,396/359,834
6. Step 6: Final answer
   x = 775,009.65