Finding the Third Proportional to 2,086,590 and 4,571,700

Step by Step Solution

1. Step 1: Write the proportion equation
   2,086,590 : 4,571,700 = 4,571,700 : x
2. Step 2: Convert to fraction form
   2,086,590/4,571,700 = 4,571,700/x
3. Step 3: Cross multiply
   2,086,590x = 4,571,700 × 4,571,700
4. Step 4: Simplify right side
   2,086,590x = 20,900,440,890,000
5. Step 5: Solve for x
   x = 20,900,440,890,000/2,086,590
6. Step 6: Final answer
   x = 10,016,553.75