Finding the Third Proportional to 2,173,689 and 4,777,650

Step by Step Solution

1. Step 1: Write the proportion equation
   2,173,689 : 4,777,650 = 4,777,650 : x
2. Step 2: Convert to fraction form
   2,173,689/4,777,650 = 4,777,650/x
3. Step 3: Cross multiply
   2,173,689x = 4,777,650 × 4,777,650
4. Step 4: Simplify right side
   2,173,689x = 22,825,939,522,500
5. Step 5: Solve for x
   x = 22,825,939,522,500/2,173,689
6. Step 6: Final answer
   x = 10,501,014.41