Finding the Third Proportional to 3,426,660 and 5,140,719

Step by Step Solution

1. Step 1: Write the proportion equation
   3,426,660 : 5,140,719 = 5,140,719 : x
2. Step 2: Convert to fraction form
   3,426,660/5,140,719 = 5,140,719/x
3. Step 3: Cross multiply
   3,426,660x = 5,140,719 × 5,140,719
4. Step 4: Simplify right side
   3,426,660x = 26,426,991,836,961
5. Step 5: Solve for x
   x = 26,426,991,836,961/3,426,660
6. Step 6: Final answer
   x = 7,712,172.16