Finding the Third Proportional to 3,379,836 and 7,515,340

Step by Step Solution

1. Step 1: Write the proportion equation
   3,379,836 : 7,515,340 = 7,515,340 : x
2. Step 2: Convert to fraction form
   3,379,836/7,515,340 = 7,515,340/x
3. Step 3: Cross multiply
   3,379,836x = 7,515,340 × 7,515,340
4. Step 4: Simplify right side
   3,379,836x = 56,480,335,315,600
5. Step 5: Solve for x
   x = 56,480,335,315,600/3,379,836
6. Step 6: Final answer
   x = 16,710,969.21