Finding the Third Proportional to 3,578,969 and 5,420,550

Step by Step Solution

1. Step 1: Write the proportion equation
   3,578,969 : 5,420,550 = 5,420,550 : x
2. Step 2: Convert to fraction form
   3,578,969/5,420,550 = 5,420,550/x
3. Step 3: Cross multiply
   3,578,969x = 5,420,550 × 5,420,550
4. Step 4: Simplify right side
   3,578,969x = 29,382,362,302,500
5. Step 5: Solve for x
   x = 29,382,362,302,500/3,578,969
6. Step 6: Final answer
   x = 8,209,728.08