Finding the Third Proportional to 713,289 and 1,108,021.50

Step by Step Solution

1. Step 1: Write the proportion equation
   713,289 : 1,108,021.50 = 1,108,021.50 : x
2. Step 2: Convert to fraction form
   713,289/1,108,021.50 = 1,108,021.50/x
3. Step 3: Cross multiply
   713,289x = 1,108,021.50 × 1,108,021.50
4. Step 4: Simplify right side
   713,289x = 1,227,711,644,462.25
5. Step 5: Solve for x
   x = 1,227,711,644,462.25/713,289
6. Step 6: Final answer
   x = 1,721,198.06