Finding the Third Proportional to 367,061 and 516,911

Step by Step Solution

1. Step 1: Write the proportion equation
   367,061 : 516,911 = 516,911 : x
2. Step 2: Convert to fraction form
   367,061/516,911 = 516,911/x
3. Step 3: Cross multiply
   367,061x = 516,911 × 516,911
4. Step 4: Simplify right side
   367,061x = 267,196,981,921
5. Step 5: Solve for x
   x = 267,196,981,921/367,061
6. Step 6: Final answer
   x = 727,936.18