Finding the Third Proportional to 240,736 and 521,612

Step by Step Solution

1. Step 1: Write the proportion equation
   240,736 : 521,612 = 521,612 : x
2. Step 2: Convert to fraction form
   240,736/521,612 = 521,612/x
3. Step 3: Cross multiply
   240,736x = 521,612 × 521,612
4. Step 4: Simplify right side
   240,736x = 272,079,078,544
5. Step 5: Solve for x
   x = 272,079,078,544/240,736
6. Step 6: Final answer
   x = 1,130,196.89