Finding the Third Proportional to 618,714 and 1,312,434

Step by Step Solution

1. Step 1: Write the proportion equation
   618,714 : 1,312,434 = 1,312,434 : x
2. Step 2: Convert to fraction form
   618,714/1,312,434 = 1,312,434/x
3. Step 3: Cross multiply
   618,714x = 1,312,434 × 1,312,434
4. Step 4: Simplify right side
   618,714x = 1,722,483,004,356
5. Step 5: Solve for x
   x = 1,722,483,004,356/618,714
6. Step 6: Final answer
   x = 2,783,972.89