Finding the Third Proportional to 1,422,868 and 2,186,784

Step by Step Solution

1. Step 1: Write the proportion equation
   1,422,868 : 2,186,784 = 2,186,784 : x
2. Step 2: Convert to fraction form
   1,422,868/2,186,784 = 2,186,784/x
3. Step 3: Cross multiply
   1,422,868x = 2,186,784 × 2,186,784
4. Step 4: Simplify right side
   1,422,868x = 4,782,024,262,656
5. Step 5: Solve for x
   x = 4,782,024,262,656/1,422,868
6. Step 6: Final answer
   x = 3,360,834.78