Finding the Third Proportional to 312,834 and 683,034

Step by Step Solution

1. Step 1: Write the proportion equation
   312,834 : 683,034 = 683,034 : x
2. Step 2: Convert to fraction form
   312,834/683,034 = 683,034/x
3. Step 3: Cross multiply
   312,834x = 683,034 × 683,034
4. Step 4: Simplify right side
   312,834x = 466,535,445,156
5. Step 5: Solve for x
   x = 466,535,445,156/312,834
6. Step 6: Final answer
   x = 1,491,319.50