Finding the Third Proportional to 3,431,740 and 7,319,468

Step by Step Solution

1. Step 1: Write the proportion equation
   3,431,740 : 7,319,468 = 7,319,468 : x
2. Step 2: Convert to fraction form
   3,431,740/7,319,468 = 7,319,468/x
3. Step 3: Cross multiply
   3,431,740x = 7,319,468 × 7,319,468
4. Step 4: Simplify right side
   3,431,740x = 53,574,611,803,024
5. Step 5: Solve for x
   x = 53,574,611,803,024/3,431,740
6. Step 6: Final answer
   x = 15,611,500.81