Finding the Third Proportional to 1,011,447 and 2,151,619

Step by Step Solution

1. Step 1: Write the proportion equation
   1,011,447 : 2,151,619 = 2,151,619 : x
2. Step 2: Convert to fraction form
   1,011,447/2,151,619 = 2,151,619/x
3. Step 3: Cross multiply
   1,011,447x = 2,151,619 × 2,151,619
4. Step 4: Simplify right side
   1,011,447x = 4,629,464,321,161
5. Step 5: Solve for x
   x = 4,629,464,321,161/1,011,447
6. Step 6: Final answer
   x = 4,577,070.59