Finding the Third Proportional to 1,189,921 and 1,812,773

Step by Step Solution

1. Step 1: Write the proportion equation
   1,189,921 : 1,812,773 = 1,812,773 : x
2. Step 2: Convert to fraction form
   1,189,921/1,812,773 = 1,812,773/x
3. Step 3: Cross multiply
   1,189,921x = 1,812,773 × 1,812,773
4. Step 4: Simplify right side
   1,189,921x = 3,286,145,949,529
5. Step 5: Solve for x
   x = 3,286,145,949,529/1,189,921
6. Step 6: Final answer
   x = 2,761,650.52