Finding the Third Proportional to 600,290 and 1,311,172

Step by Step Solution

1. Step 1: Write the proportion equation
   600,290 : 1,311,172 = 1,311,172 : x
2. Step 2: Convert to fraction form
   600,290/1,311,172 = 1,311,172/x
3. Step 3: Cross multiply
   600,290x = 1,311,172 × 1,311,172
4. Step 4: Simplify right side
   600,290x = 1,719,172,013,584
5. Step 5: Solve for x
   x = 1,719,172,013,584/600,290
6. Step 6: Final answer
   x = 2,863,902.47