Finding the Third Proportional to 1,215,695 and 2,645,442

Step by Step Solution

1. Step 1: Write the proportion equation
   1,215,695 : 2,645,442 = 2,645,442 : x
2. Step 2: Convert to fraction form
   1,215,695/2,645,442 = 2,645,442/x
3. Step 3: Cross multiply
   1,215,695x = 2,645,442 × 2,645,442
4. Step 4: Simplify right side
   1,215,695x = 6,998,363,375,364
5. Step 5: Solve for x
   x = 6,998,363,375,364/1,215,695
6. Step 6: Final answer
   x = 5,756,676.94