Finding the Third Proportional to 212,827.50 and 317,394

Step by Step Solution

1. Step 1: Write the proportion equation
   212,827.50 : 317,394 = 317,394 : x
2. Step 2: Convert to fraction form
   212,827.50/317,394 = 317,394/x
3. Step 3: Cross multiply
   212,827.50x = 317,394 × 317,394
4. Step 4: Simplify right side
   212,827.50x = 100,738,951,236
5. Step 5: Solve for x
   x = 100,738,951,236/212,827.50
6. Step 6: Final answer
   x = 473,336.16