Finding the Third Proportional to 1,243,898 and 2,598,268

Step by Step Solution

1. Step 1: Write the proportion equation
   1,243,898 : 2,598,268 = 2,598,268 : x
2. Step 2: Convert to fraction form
   1,243,898/2,598,268 = 2,598,268/x
3. Step 3: Cross multiply
   1,243,898x = 2,598,268 × 2,598,268
4. Step 4: Simplify right side
   1,243,898x = 6,750,996,599,824
5. Step 5: Solve for x
   x = 6,750,996,599,824/1,243,898
6. Step 6: Final answer
   x = 5,427,291.14