Finding the Third Proportional to 1,222,840 and 1,630,896

Step by Step Solution

1. Step 1: Write the proportion equation
   1,222,840 : 1,630,896 = 1,630,896 : x
2. Step 2: Convert to fraction form
   1,222,840/1,630,896 = 1,630,896/x
3. Step 3: Cross multiply
   1,222,840x = 1,630,896 × 1,630,896
4. Step 4: Simplify right side
   1,222,840x = 2,659,821,762,816
5. Step 5: Solve for x
   x = 2,659,821,762,816/1,222,840
6. Step 6: Final answer
   x = 2,175,118.38