Finding the Third Proportional to 1,219,436 and 1,811,466

Step by Step Solution

1. Step 1: Write the proportion equation
   1,219,436 : 1,811,466 = 1,811,466 : x
2. Step 2: Convert to fraction form
   1,219,436/1,811,466 = 1,811,466/x
3. Step 3: Cross multiply
   1,219,436x = 1,811,466 × 1,811,466
4. Step 4: Simplify right side
   1,219,436x = 3,281,409,069,156
5. Step 5: Solve for x
   x = 3,281,409,069,156/1,219,436
6. Step 6: Final answer
   x = 2,690,923.57