Finding the Third Proportional to 3,390,176 and 7,318,111

Step by Step Solution

1. Step 1: Write the proportion equation
   3,390,176 : 7,318,111 = 7,318,111 : x
2. Step 2: Convert to fraction form
   3,390,176/7,318,111 = 7,318,111/x
3. Step 3: Cross multiply
   3,390,176x = 7,318,111 × 7,318,111
4. Step 4: Simplify right side
   3,390,176x = 53,554,748,608,321
5. Step 5: Solve for x
   x = 53,554,748,608,321/3,390,176
6. Step 6: Final answer
   x = 15,797,040.81