Finding the Third Proportional to 2,115,456 and 4,650,816

Step by Step Solution

1. Step 1: Write the proportion equation
   2,115,456 : 4,650,816 = 4,650,816 : x
2. Step 2: Convert to fraction form
   2,115,456/4,650,816 = 4,650,816/x
3. Step 3: Cross multiply
   2,115,456x = 4,650,816 × 4,650,816
4. Step 4: Simplify right side
   2,115,456x = 21,630,089,465,856
5. Step 5: Solve for x
   x = 21,630,089,465,856/2,115,456
6. Step 6: Final answer
   x = 10,224,788.16