Finding the Third Proportional to 1,200,916 and 2,638,028

Step by Step Solution

1. Step 1: Write the proportion equation
   1,200,916 : 2,638,028 = 2,638,028 : x
2. Step 2: Convert to fraction form
   1,200,916/2,638,028 = 2,638,028/x
3. Step 3: Cross multiply
   1,200,916x = 2,638,028 × 2,638,028
4. Step 4: Simplify right side
   1,200,916x = 6,959,191,728,784
5. Step 5: Solve for x
   x = 6,959,191,728,784/1,200,916
6. Step 6: Final answer
   x = 5,794,903.00