Finding the Third Proportional to 3,379,768 and 7,515,172

Step by Step Solution

1. Step 1: Write the proportion equation
   3,379,768 : 7,515,172 = 7,515,172 : x
2. Step 2: Convert to fraction form
   3,379,768/7,515,172 = 7,515,172/x
3. Step 3: Cross multiply
   3,379,768x = 7,515,172 × 7,515,172
4. Step 4: Simplify right side
   3,379,768x = 56,477,810,189,584
5. Step 5: Solve for x
   x = 56,477,810,189,584/3,379,768
6. Step 6: Final answer
   x = 16,710,558.30