Finding the Third Proportional to 5,647,020 and 8,523,180

Step by Step Solution

1. Step 1: Write the proportion equation
   5,647,020 : 8,523,180 = 8,523,180 : x
2. Step 2: Convert to fraction form
   5,647,020/8,523,180 = 8,523,180/x
3. Step 3: Cross multiply
   5,647,020x = 8,523,180 × 8,523,180
4. Step 4: Simplify right side
   5,647,020x = 72,644,597,312,400
5. Step 5: Solve for x
   x = 72,644,597,312,400/5,647,020
6. Step 6: Final answer
   x = 12,864,235.88