Finding the Third Proportional to 618,435 and 1,342,620

Step by Step Solution

1. Step 1: Write the proportion equation
   618,435 : 1,342,620 = 1,342,620 : x
2. Step 2: Convert to fraction form
   618,435/1,342,620 = 1,342,620/x
3. Step 3: Cross multiply
   618,435x = 1,342,620 × 1,342,620
4. Step 4: Simplify right side
   618,435x = 1,802,628,464,400
5. Step 5: Solve for x
   x = 1,802,628,464,400/618,435
6. Step 6: Final answer
   x = 2,914,822.84