Finding the Third Proportional to 4,971,608 and 7,677,200

Step by Step Solution

1. Step 1: Write the proportion equation
   4,971,608 : 7,677,200 = 7,677,200 : x
2. Step 2: Convert to fraction form
   4,971,608/7,677,200 = 7,677,200/x
3. Step 3: Cross multiply
   4,971,608x = 7,677,200 × 7,677,200
4. Step 4: Simplify right side
   4,971,608x = 58,939,399,840,000
5. Step 5: Solve for x
   x = 58,939,399,840,000/4,971,608
6. Step 6: Final answer
   x = 11,855,198.53