Finding the Third Proportional to 1,011,642 and 2,116,819

Step by Step Solution

1. Step 1: Write the proportion equation
   1,011,642 : 2,116,819 = 2,116,819 : x
2. Step 2: Convert to fraction form
   1,011,642/2,116,819 = 2,116,819/x
3. Step 3: Cross multiply
   1,011,642x = 2,116,819 × 2,116,819
4. Step 4: Simplify right side
   1,011,642x = 4,480,922,678,761
5. Step 5: Solve for x
   x = 4,480,922,678,761/1,011,642
6. Step 6: Final answer
   x = 4,429,356.11