Finding the Third Proportional to 16,578,728 and 35,676,880

Step by Step Solution

1. Step 1: Write the proportion equation
   16,578,728 : 35,676,880 = 35,676,880 : x
2. Step 2: Convert to fraction form
   16,578,728/35,676,880 = 35,676,880/x
3. Step 3: Cross multiply
   16,578,728x = 35,676,880 × 35,676,880
4. Step 4: Simplify right side
   16,578,728x = 1,272,839,766,534,400
5. Step 5: Solve for x
   x = 1,272,839,766,534,400/16,578,728
6. Step 6: Final answer
   x = 76,775,477.98