Finding the Third Proportional to 3,379,828 and 7,515,326

Step by Step Solution

1. Step 1: Write the proportion equation
   3,379,828 : 7,515,326 = 7,515,326 : x
2. Step 2: Convert to fraction form
   3,379,828/7,515,326 = 7,515,326/x
3. Step 3: Cross multiply
   3,379,828x = 7,515,326 × 7,515,326
4. Step 4: Simplify right side
   3,379,828x = 56,480,124,886,276
5. Step 5: Solve for x
   x = 56,480,124,886,276/3,379,828
6. Step 6: Final answer
   x = 16,710,946.50