Finding the Third Proportional to 240,470 and 517,144

Step by Step Solution

1. Step 1: Write the proportion equation
   240,470 : 517,144 = 517,144 : x
2. Step 2: Convert to fraction form
   240,470/517,144 = 517,144/x
3. Step 3: Cross multiply
   240,470x = 517,144 × 517,144
4. Step 4: Simplify right side
   240,470x = 267,437,916,736
5. Step 5: Solve for x
   x = 267,437,916,736/240,470
6. Step 6: Final answer
   x = 1,112,146.70