Finding the Third Proportional to 16,389,814 and 35,405,660

Step by Step Solution

1. Step 1: Write the proportion equation
   16,389,814 : 35,405,660 = 35,405,660 : x
2. Step 2: Convert to fraction form
   16,389,814/35,405,660 = 35,405,660/x
3. Step 3: Cross multiply
   16,389,814x = 35,405,660 × 35,405,660
4. Step 4: Simplify right side
   16,389,814x = 1,253,560,760,035,600
5. Step 5: Solve for x
   x = 1,253,560,760,035,600/16,389,814
6. Step 6: Final answer
   x = 76,484,135.82