Finding the Third Proportional to 1,018,664 and 2,121,043

Step by Step Solution

1. Step 1: Write the proportion equation
   1,018,664 : 2,121,043 = 2,121,043 : x
2. Step 2: Convert to fraction form
   1,018,664/2,121,043 = 2,121,043/x
3. Step 3: Cross multiply
   1,018,664x = 2,121,043 × 2,121,043
4. Step 4: Simplify right side
   1,018,664x = 4,498,823,407,849
5. Step 5: Solve for x
   x = 4,498,823,407,849/1,018,664
6. Step 6: Final answer
   x = 4,416,395.80