Finding the Third Proportional to 3,426,555 and 7,309,099

Step by Step Solution

1. Step 1: Write the proportion equation
   3,426,555 : 7,309,099 = 7,309,099 : x
2. Step 2: Convert to fraction form
   3,426,555/7,309,099 = 7,309,099/x
3. Step 3: Cross multiply
   3,426,555x = 7,309,099 × 7,309,099
4. Step 4: Simplify right side
   3,426,555x = 53,422,928,191,801
5. Step 5: Solve for x
   x = 53,422,928,191,801/3,426,555
6. Step 6: Final answer
   x = 15,590,856.76