Finding the Third Proportional to 1,427,766 and 2,210,769

Step by Step Solution

1. Step 1: Write the proportion equation
   1,427,766 : 2,210,769 = 2,210,769 : x
2. Step 2: Convert to fraction form
   1,427,766/2,210,769 = 2,210,769/x
3. Step 3: Cross multiply
   1,427,766x = 2,210,769 × 2,210,769
4. Step 4: Simplify right side
   1,427,766x = 4,887,499,571,361
5. Step 5: Solve for x
   x = 4,887,499,571,361/1,427,766
6. Step 6: Final answer
   x = 3,423,179.69