Finding the Third Proportional to 603,458 and 1,322,980

Step by Step Solution

1. Step 1: Write the proportion equation
   603,458 : 1,322,980 = 1,322,980 : x
2. Step 2: Convert to fraction form
   603,458/1,322,980 = 1,322,980/x
3. Step 3: Cross multiply
   603,458x = 1,322,980 × 1,322,980
4. Step 4: Simplify right side
   603,458x = 1,750,276,080,400
5. Step 5: Solve for x
   x = 1,750,276,080,400/603,458
6. Step 6: Final answer
   x = 2,900,410.77