Finding the Third Proportional to 1,215,694 and 2,645,446

Step by Step Solution

1. Step 1: Write the proportion equation
   1,215,694 : 2,645,446 = 2,645,446 : x
2. Step 2: Convert to fraction form
   1,215,694/2,645,446 = 2,645,446/x
3. Step 3: Cross multiply
   1,215,694x = 2,645,446 × 2,645,446
4. Step 4: Simplify right side
   1,215,694x = 6,998,384,538,916
5. Step 5: Solve for x
   x = 6,998,384,538,916/1,215,694
6. Step 6: Final answer
   x = 5,756,699.09