Finding the Third Proportional to 4,600,768 and 9,677,480

Step by Step Solution

1. Step 1: Write the proportion equation
   4,600,768 : 9,677,480 = 9,677,480 : x
2. Step 2: Convert to fraction form
   4,600,768/9,677,480 = 9,677,480/x
3. Step 3: Cross multiply
   4,600,768x = 9,677,480 × 9,677,480
4. Step 4: Simplify right side
   4,600,768x = 93,653,619,150,400
5. Step 5: Solve for x
   x = 93,653,619,150,400/4,600,768
6. Step 6: Final answer
   x = 20,356,083.84