Finding the Third Proportional to 1,382,508 and 2,115,861

Step by Step Solution

1. Step 1: Write the proportion equation
   1,382,508 : 2,115,861 = 2,115,861 : x
2. Step 2: Convert to fraction form
   1,382,508/2,115,861 = 2,115,861/x
3. Step 3: Cross multiply
   1,382,508x = 2,115,861 × 2,115,861
4. Step 4: Simplify right side
   1,382,508x = 4,476,867,771,321
5. Step 5: Solve for x
   x = 4,476,867,771,321/1,382,508
6. Step 6: Final answer
   x = 3,238,221.96