Finding the Third Proportional to 1,422,857 and 2,186,769

Step by Step Solution

1. Step 1: Write the proportion equation
   1,422,857 : 2,186,769 = 2,186,769 : x
2. Step 2: Convert to fraction form
   1,422,857/2,186,769 = 2,186,769/x
3. Step 3: Cross multiply
   1,422,857x = 2,186,769 × 2,186,769
4. Step 4: Simplify right side
   1,422,857x = 4,781,958,659,361
5. Step 5: Solve for x
   x = 4,781,958,659,361/1,422,857
6. Step 6: Final answer
   x = 3,360,814.66