Finding the Third Proportional to 3,262,688 and 7,115,200

Step by Step Solution

1. Step 1: Write the proportion equation
   3,262,688 : 7,115,200 = 7,115,200 : x
2. Step 2: Convert to fraction form
   3,262,688/7,115,200 = 7,115,200/x
3. Step 3: Cross multiply
   3,262,688x = 7,115,200 × 7,115,200
4. Step 4: Simplify right side
   3,262,688x = 50,626,071,040,000
5. Step 5: Solve for x
   x = 50,626,071,040,000/3,262,688
6. Step 6: Final answer
   x = 15,516,675.53