Finding the Third Proportional to 8,467,069 and 12,719,666

Step by Step Solution

1. Step 1: Write the proportion equation
   8,467,069 : 12,719,666 = 12,719,666 : x
2. Step 2: Convert to fraction form
   8,467,069/12,719,666 = 12,719,666/x
3. Step 3: Cross multiply
   8,467,069x = 12,719,666 × 12,719,666
4. Step 4: Simplify right side
   8,467,069x = 161,789,903,151,556
5. Step 5: Solve for x
   x = 161,789,903,151,556/8,467,069
6. Step 6: Final answer
   x = 19,108,135.67