Finding the Third Proportional to 1,266,317 and 1,810,711

Step by Step Solution

1. Step 1: Write the proportion equation
   1,266,317 : 1,810,711 = 1,810,711 : x
2. Step 2: Convert to fraction form
   1,266,317/1,810,711 = 1,810,711/x
3. Step 3: Cross multiply
   1,266,317x = 1,810,711 × 1,810,711
4. Step 4: Simplify right side
   1,266,317x = 3,278,674,325,521
5. Step 5: Solve for x
   x = 3,278,674,325,521/1,266,317
6. Step 6: Final answer
   x = 2,589,141.84