Finding the Third Proportional to 738,672 and 1,587,684

Step by Step Solution

1. Step 1: Write the proportion equation
   738,672 : 1,587,684 = 1,587,684 : x
2. Step 2: Convert to fraction form
   738,672/1,587,684 = 1,587,684/x
3. Step 3: Cross multiply
   738,672x = 1,587,684 × 1,587,684
4. Step 4: Simplify right side
   738,672x = 2,520,740,483,856
5. Step 5: Solve for x
   x = 2,520,740,483,856/738,672
6. Step 6: Final answer
   x = 3,412,530.17