Finding the Third Proportional to 1,098,678 and 2,645,904

Step by Step Solution

1. Step 1: Write the proportion equation
   1,098,678 : 2,645,904 = 2,645,904 : x
2. Step 2: Convert to fraction form
   1,098,678/2,645,904 = 2,645,904/x
3. Step 3: Cross multiply
   1,098,678x = 2,645,904 × 2,645,904
4. Step 4: Simplify right side
   1,098,678x = 7,000,807,977,216
5. Step 5: Solve for x
   x = 7,000,807,977,216/1,098,678
6. Step 6: Final answer
   x = 6,372,028.91