Finding the Third Proportional to 485,400 and 1,009,536

Step by Step Solution

1. Step 1: Write the proportion equation
   485,400 : 1,009,536 = 1,009,536 : x
2. Step 2: Convert to fraction form
   485,400/1,009,536 = 1,009,536/x
3. Step 3: Cross multiply
   485,400x = 1,009,536 × 1,009,536
4. Step 4: Simplify right side
   485,400x = 1,019,162,935,296
5. Step 5: Solve for x
   x = 1,019,162,935,296/485,400
6. Step 6: Final answer
   x = 2,099,635.22