Finding the Third Proportional to 3,459,980 and 7,431,412

Step by Step Solution

1. Step 1: Write the proportion equation
   3,459,980 : 7,431,412 = 7,431,412 : x
2. Step 2: Convert to fraction form
   3,459,980/7,431,412 = 7,431,412/x
3. Step 3: Cross multiply
   3,459,980x = 7,431,412 × 7,431,412
4. Step 4: Simplify right side
   3,459,980x = 55,225,884,313,744
5. Step 5: Solve for x
   x = 55,225,884,313,744/3,459,980
6. Step 6: Final answer
   x = 15,961,330.50