Finding the Third Proportional to 333,960 and 517,200

Step by Step Solution

1. Step 1: Write the proportion equation
   333,960 : 517,200 = 517,200 : x
2. Step 2: Convert to fraction form
   333,960/517,200 = 517,200/x
3. Step 3: Cross multiply
   333,960x = 517,200 × 517,200
4. Step 4: Simplify right side
   333,960x = 267,495,840,000
5. Step 5: Solve for x
   x = 267,495,840,000/333,960
6. Step 6: Final answer
   x = 800,981.67