Finding the Third Proportional to 3,257,174 and 7,156,780

Step by Step Solution

1. Step 1: Write the proportion equation
   3,257,174 : 7,156,780 = 7,156,780 : x
2. Step 2: Convert to fraction form
   3,257,174/7,156,780 = 7,156,780/x
3. Step 3: Cross multiply
   3,257,174x = 7,156,780 × 7,156,780
4. Step 4: Simplify right side
   3,257,174x = 51,219,499,968,400
5. Step 5: Solve for x
   x = 51,219,499,968,400/3,257,174
6. Step 6: Final answer
   x = 15,725,134.72