Finding the Third Proportional to 3,174,160 and 7,054,640

Step by Step Solution

1. Step 1: Write the proportion equation
   3,174,160 : 7,054,640 = 7,054,640 : x
2. Step 2: Convert to fraction form
   3,174,160/7,054,640 = 7,054,640/x
3. Step 3: Cross multiply
   3,174,160x = 7,054,640 × 7,054,640
4. Step 4: Simplify right side
   3,174,160x = 49,767,945,529,600
5. Step 5: Solve for x
   x = 49,767,945,529,600/3,174,160
6. Step 6: Final answer
   x = 15,679,091.64