Finding the Third Proportional to 597,290 and 1,289,672

Step by Step Solution

1. Step 1: Write the proportion equation
   597,290 : 1,289,672 = 1,289,672 : x
2. Step 2: Convert to fraction form
   597,290/1,289,672 = 1,289,672/x
3. Step 3: Cross multiply
   597,290x = 1,289,672 × 1,289,672
4. Step 4: Simplify right side
   597,290x = 1,663,253,867,584
5. Step 5: Solve for x
   x = 1,663,253,867,584/597,290
6. Step 6: Final answer
   x = 2,784,667.19