Finding the Third Proportional to 3,257,209 and 7,156,856

Step by Step Solution

1. Step 1: Write the proportion equation
   3,257,209 : 7,156,856 = 7,156,856 : x
2. Step 2: Convert to fraction form
   3,257,209/7,156,856 = 7,156,856/x
3. Step 3: Cross multiply
   3,257,209x = 7,156,856 × 7,156,856
4. Step 4: Simplify right side
   3,257,209x = 51,220,587,804,736
5. Step 5: Solve for x
   x = 51,220,587,804,736/3,257,209
6. Step 6: Final answer
   x = 15,725,299.73