Finding the Third Proportional to 738,659 and 1,587,665

Step by Step Solution

1. Step 1: Write the proportion equation
   738,659 : 1,587,665 = 1,587,665 : x
2. Step 2: Convert to fraction form
   738,659/1,587,665 = 1,587,665/x
3. Step 3: Cross multiply
   738,659x = 1,587,665 × 1,587,665
4. Step 4: Simplify right side
   738,659x = 2,520,680,152,225
5. Step 5: Solve for x
   x = 2,520,680,152,225/738,659
6. Step 6: Final answer
   x = 3,412,508.55