Finding the Third Proportional to 10,485,678 and 14,166,807

Step by Step Solution

1. Step 1: Write the proportion equation
   10,485,678 : 14,166,807 = 14,166,807 : x
2. Step 2: Convert to fraction form
   10,485,678/14,166,807 = 14,166,807/x
3. Step 3: Cross multiply
   10,485,678x = 14,166,807 × 14,166,807
4. Step 4: Simplify right side
   10,485,678x = 200,698,420,575,249
5. Step 5: Solve for x
   x = 200,698,420,575,249/10,485,678
6. Step 6: Final answer
   x = 19,140,242.58