Finding the Third Proportional to 3,692,666 and 7,678,876

Step by Step Solution

1. Step 1: Write the proportion equation
   3,692,666 : 7,678,876 = 7,678,876 : x
2. Step 2: Convert to fraction form
   3,692,666/7,678,876 = 7,678,876/x
3. Step 3: Cross multiply
   3,692,666x = 7,678,876 × 7,678,876
4. Step 4: Simplify right side
   3,692,666x = 58,965,136,623,376
5. Step 5: Solve for x
   x = 58,965,136,623,376/3,692,666
6. Step 6: Final answer
   x = 15,968,174.92