Finding the Third Proportional to 16,409,686 and 35,968,400

Step by Step Solution

1. Step 1: Write the proportion equation
   16,409,686 : 35,968,400 = 35,968,400 : x
2. Step 2: Convert to fraction form
   16,409,686/35,968,400 = 35,968,400/x
3. Step 3: Cross multiply
   16,409,686x = 35,968,400 × 35,968,400
4. Step 4: Simplify right side
   16,409,686x = 1,293,725,798,560,000
5. Step 5: Solve for x
   x = 1,293,725,798,560,000/16,409,686
6. Step 6: Final answer
   x = 78,839,156.25