Finding the Third Proportional to 3,228,709 and 7,087,178

Step by Step Solution

1. Step 1: Write the proportion equation
   3,228,709 : 7,087,178 = 7,087,178 : x
2. Step 2: Convert to fraction form
   3,228,709/7,087,178 = 7,087,178/x
3. Step 3: Cross multiply
   3,228,709x = 7,087,178 × 7,087,178
4. Step 4: Simplify right side
   3,228,709x = 50,228,092,003,684
5. Step 5: Solve for x
   x = 50,228,092,003,684/3,228,709
6. Step 6: Final answer
   x = 15,556,710.75