Finding the Third Proportional to 1,005,398 and 2,191,450

Step by Step Solution

1. Step 1: Write the proportion equation
   1,005,398 : 2,191,450 = 2,191,450 : x
2. Step 2: Convert to fraction form
   1,005,398/2,191,450 = 2,191,450/x
3. Step 3: Cross multiply
   1,005,398x = 2,191,450 × 2,191,450
4. Step 4: Simplify right side
   1,005,398x = 4,802,453,102,500
5. Step 5: Solve for x
   x = 4,802,453,102,500/1,005,398
6. Step 6: Final answer
   x = 4,776,668.65