Finding the Third Proportional to 687,892.50 and 1,042,227

Step by Step Solution

1. Step 1: Write the proportion equation
   687,892.50 : 1,042,227 = 1,042,227 : x
2. Step 2: Convert to fraction form
   687,892.50/1,042,227 = 1,042,227/x
3. Step 3: Cross multiply
   687,892.50x = 1,042,227 × 1,042,227
4. Step 4: Simplify right side
   687,892.50x = 1,086,237,119,529
5. Step 5: Solve for x
   x = 1,086,237,119,529/687,892.50
6. Step 6: Final answer
   x = 1,579,079.75