Finding the Third Proportional to 1,011,648 and 2,180,928

Step by Step Solution

1. Step 1: Write the proportion equation
   1,011,648 : 2,180,928 = 2,180,928 : x
2. Step 2: Convert to fraction form
   1,011,648/2,180,928 = 2,180,928/x
3. Step 3: Cross multiply
   1,011,648x = 2,180,928 × 2,180,928
4. Step 4: Simplify right side
   1,011,648x = 4,756,446,941,184
5. Step 5: Solve for x
   x = 4,756,446,941,184/1,011,648
6. Step 6: Final answer
   x = 4,701,681.75