Finding the Third Proportional to 5,131,957 and 7,174,778

Step by Step Solution

1. Step 1: Write the proportion equation
   5,131,957 : 7,174,778 = 7,174,778 : x
2. Step 2: Convert to fraction form
   5,131,957/7,174,778 = 7,174,778/x
3. Step 3: Cross multiply
   5,131,957x = 7,174,778 × 7,174,778
4. Step 4: Simplify right side
   5,131,957x = 51,477,439,349,284
5. Step 5: Solve for x
   x = 51,477,439,349,284/5,131,957
6. Step 6: Final answer
   x = 10,030,762.02