Finding the Third Proportional to 1,219,440 and 1,811,473

Step by Step Solution

1. Step 1: Write the proportion equation
   1,219,440 : 1,811,473 = 1,811,473 : x
2. Step 2: Convert to fraction form
   1,219,440/1,811,473 = 1,811,473/x
3. Step 3: Cross multiply
   1,219,440x = 1,811,473 × 1,811,473
4. Step 4: Simplify right side
   1,219,440x = 3,281,434,429,729
5. Step 5: Solve for x
   x = 3,281,434,429,729/1,219,440
6. Step 6: Final answer
   x = 2,690,935.54