Finding the Third Proportional to 2,161,800 and 4,692,816

Step by Step Solution

1. Step 1: Write the proportion equation
   2,161,800 : 4,692,816 = 4,692,816 : x
2. Step 2: Convert to fraction form
   2,161,800/4,692,816 = 4,692,816/x
3. Step 3: Cross multiply
   2,161,800x = 4,692,816 × 4,692,816
4. Step 4: Simplify right side
   2,161,800x = 22,022,522,009,856
5. Step 5: Solve for x
   x = 22,022,522,009,856/2,161,800
6. Step 6: Final answer
   x = 10,187,122.77