Finding the Third Proportional to 1,008,870 and 2,111,208

Step by Step Solution

1. Step 1: Write the proportion equation
   1,008,870 : 2,111,208 = 2,111,208 : x
2. Step 2: Convert to fraction form
   1,008,870/2,111,208 = 2,111,208/x
3. Step 3: Cross multiply
   1,008,870x = 2,111,208 × 2,111,208
4. Step 4: Simplify right side
   1,008,870x = 4,457,199,219,264
5. Step 5: Solve for x
   x = 4,457,199,219,264/1,008,870
6. Step 6: Final answer
   x = 4,418,011.46