Finding the Third Proportional to 388,632 and 571,834

Step by Step Solution

1. Step 1: Write the proportion equation
   388,632 : 571,834 = 571,834 : x
2. Step 2: Convert to fraction form
   388,632/571,834 = 571,834/x
3. Step 3: Cross multiply
   388,632x = 571,834 × 571,834
4. Step 4: Simplify right side
   388,632x = 326,994,123,556
5. Step 5: Solve for x
   x = 326,994,123,556/388,632
6. Step 6: Final answer
   x = 841,397.84