Finding the Third Proportional to 1,422,516 and 2,181,288

Step by Step Solution

1. Step 1: Write the proportion equation
   1,422,516 : 2,181,288 = 2,181,288 : x
2. Step 2: Convert to fraction form
   1,422,516/2,181,288 = 2,181,288/x
3. Step 3: Cross multiply
   1,422,516x = 2,181,288 × 2,181,288
4. Step 4: Simplify right side
   1,422,516x = 4,758,017,338,944
5. Step 5: Solve for x
   x = 4,758,017,338,944/1,422,516
6. Step 6: Final answer
   x = 3,344,790.03