Finding the Third Proportional to 4,277,621 and 9,511,650

Step by Step Solution

1. Step 1: Write the proportion equation
   4,277,621 : 9,511,650 = 9,511,650 : x
2. Step 2: Convert to fraction form
   4,277,621/9,511,650 = 9,511,650/x
3. Step 3: Cross multiply
   4,277,621x = 9,511,650 × 9,511,650
4. Step 4: Simplify right side
   4,277,621x = 90,471,485,722,500
5. Step 5: Solve for x
   x = 90,471,485,722,500/4,277,621
6. Step 6: Final answer
   x = 21,149,953.61