Finding the Third Proportional to 1,206,110 and 1,638,003

Step by Step Solution

1. Step 1: Write the proportion equation
   1,206,110 : 1,638,003 = 1,638,003 : x
2. Step 2: Convert to fraction form
   1,206,110/1,638,003 = 1,638,003/x
3. Step 3: Cross multiply
   1,206,110x = 1,638,003 × 1,638,003
4. Step 4: Simplify right side
   1,206,110x = 2,683,053,828,009
5. Step 5: Solve for x
   x = 2,683,053,828,009/1,206,110
6. Step 6: Final answer
   x = 2,224,551.52