Finding the Third Proportional to 978,908 and 2,010,520

Step by Step Solution

1. Step 1: Write the proportion equation
   978,908 : 2,010,520 = 2,010,520 : x
2. Step 2: Convert to fraction form
   978,908/2,010,520 = 2,010,520/x
3. Step 3: Cross multiply
   978,908x = 2,010,520 × 2,010,520
4. Step 4: Simplify right side
   978,908x = 4,042,190,670,400
5. Step 5: Solve for x
   x = 4,042,190,670,400/978,908
6. Step 6: Final answer
   x = 4,129,285.56