Finding the Third Proportional to 4,991,620 and 7,580,734

Step by Step Solution

1. Step 1: Write the proportion equation
   4,991,620 : 7,580,734 = 7,580,734 : x
2. Step 2: Convert to fraction form
   4,991,620/7,580,734 = 7,580,734/x
3. Step 3: Cross multiply
   4,991,620x = 7,580,734 × 7,580,734
4. Step 4: Simplify right side
   4,991,620x = 57,467,527,978,756
5. Step 5: Solve for x
   x = 57,467,527,978,756/4,991,620
6. Step 6: Final answer
   x = 11,512,801.05