Finding the Third Proportional to 1,206,112 and 1,638,006

Step by Step Solution

1. Step 1: Write the proportion equation
   1,206,112 : 1,638,006 = 1,638,006 : x
2. Step 2: Convert to fraction form
   1,206,112/1,638,006 = 1,638,006/x
3. Step 3: Cross multiply
   1,206,112x = 1,638,006 × 1,638,006
4. Step 4: Simplify right side
   1,206,112x = 2,683,063,656,036
5. Step 5: Solve for x
   x = 2,683,063,656,036/1,206,112
6. Step 6: Final answer
   x = 2,224,555.97