Finding the Third Proportional to 240,728 and 521,632

Step by Step Solution

1. Step 1: Write the proportion equation
   240,728 : 521,632 = 521,632 : x
2. Step 2: Convert to fraction form
   240,728/521,632 = 521,632/x
3. Step 3: Cross multiply
   240,728x = 521,632 × 521,632
4. Step 4: Simplify right side
   240,728x = 272,099,943,424
5. Step 5: Solve for x
   x = 272,099,943,424/240,728
6. Step 6: Final answer
   x = 1,130,321.12