Finding the Third Proportional to 1,806,822 and 3,928,572

Step by Step Solution

1. Step 1: Write the proportion equation
   1,806,822 : 3,928,572 = 3,928,572 : x
2. Step 2: Convert to fraction form
   1,806,822/3,928,572 = 3,928,572/x
3. Step 3: Cross multiply
   1,806,822x = 3,928,572 × 3,928,572
4. Step 4: Simplify right side
   1,806,822x = 15,433,677,959,184
5. Step 5: Solve for x
   x = 15,433,677,959,184/1,806,822
6. Step 6: Final answer
   x = 8,541,891.76