Finding the Third Proportional to 443,418 and 1,005,207

Step by Step Solution

1. Step 1: Write the proportion equation
   443,418 : 1,005,207 = 1,005,207 : x
2. Step 2: Convert to fraction form
   443,418/1,005,207 = 1,005,207/x
3. Step 3: Cross multiply
   443,418x = 1,005,207 × 1,005,207
4. Step 4: Simplify right side
   443,418x = 1,010,441,112,849
5. Step 5: Solve for x
   x = 1,010,441,112,849/443,418
6. Step 6: Final answer
   x = 2,278,755.29