Finding the Third Proportional to 240,306.75 and 512,784

Step by Step Solution

1. Step 1: Write the proportion equation
   240,306.75 : 512,784 = 512,784 : x
2. Step 2: Convert to fraction form
   240,306.75/512,784 = 512,784/x
3. Step 3: Cross multiply
   240,306.75x = 512,784 × 512,784
4. Step 4: Simplify right side
   240,306.75x = 262,947,430,656
5. Step 5: Solve for x
   x = 262,947,430,656/240,306.75
6. Step 6: Final answer
   x = 1,094,215.75