Finding the Third Proportional to 1,018,666 and 2,121,047

Step by Step Solution

1. Step 1: Write the proportion equation
   1,018,666 : 2,121,047 = 2,121,047 : x
2. Step 2: Convert to fraction form
   1,018,666/2,121,047 = 2,121,047/x
3. Step 3: Cross multiply
   1,018,666x = 2,121,047 × 2,121,047
4. Step 4: Simplify right side
   1,018,666x = 4,498,840,376,209
5. Step 5: Solve for x
   x = 4,498,840,376,209/1,018,666
6. Step 6: Final answer
   x = 4,416,403.78