Finding the Third Proportional to 619,878 and 1,357,692

Step by Step Solution

1. Step 1: Write the proportion equation
   619,878 : 1,357,692 = 1,357,692 : x
2. Step 2: Convert to fraction form
   619,878/1,357,692 = 1,357,692/x
3. Step 3: Cross multiply
   619,878x = 1,357,692 × 1,357,692
4. Step 4: Simplify right side
   619,878x = 1,843,327,566,864
5. Step 5: Solve for x
   x = 1,843,327,566,864/619,878
6. Step 6: Final answer
   x = 2,973,694.13