Finding the Third Proportional to 4,056,464 and 8,688,768

Step by Step Solution

1. Step 1: Write the proportion equation
   4,056,464 : 8,688,768 = 8,688,768 : x
2. Step 2: Convert to fraction form
   4,056,464/8,688,768 = 8,688,768/x
3. Step 3: Cross multiply
   4,056,464x = 8,688,768 × 8,688,768
4. Step 4: Simplify right side
   4,056,464x = 75,494,689,357,824
5. Step 5: Solve for x
   x = 75,494,689,357,824/4,056,464
6. Step 6: Final answer
   x = 18,610,960.03