Finding the Third Proportional to 687,660 and 1,051,254

Step by Step Solution

1. Step 1: Write the proportion equation
   687,660 : 1,051,254 = 1,051,254 : x
2. Step 2: Convert to fraction form
   687,660/1,051,254 = 1,051,254/x
3. Step 3: Cross multiply
   687,660x = 1,051,254 × 1,051,254
4. Step 4: Simplify right side
   687,660x = 1,105,134,972,516
5. Step 5: Solve for x
   x = 1,105,134,972,516/687,660
6. Step 6: Final answer
   x = 1,607,095.04