Finding the Third Proportional to 978,600 and 2,120,052

Step by Step Solution

1. Step 1: Write the proportion equation
   978,600 : 2,120,052 = 2,120,052 : x
2. Step 2: Convert to fraction form
   978,600/2,120,052 = 2,120,052/x
3. Step 3: Cross multiply
   978,600x = 2,120,052 × 2,120,052
4. Step 4: Simplify right side
   978,600x = 4,494,620,482,704
5. Step 5: Solve for x
   x = 4,494,620,482,704/978,600
6. Step 6: Final answer
   x = 4,592,908.73