Finding the Third Proportional to 618,330 and 1,342,410

Step by Step Solution

1. Step 1: Write the proportion equation
   618,330 : 1,342,410 = 1,342,410 : x
2. Step 2: Convert to fraction form
   618,330/1,342,410 = 1,342,410/x
3. Step 3: Cross multiply
   618,330x = 1,342,410 × 1,342,410
4. Step 4: Simplify right side
   618,330x = 1,802,064,608,100
5. Step 5: Solve for x
   x = 1,802,064,608,100/618,330
6. Step 6: Final answer
   x = 2,914,405.91