Finding the Third Proportional to 684,718 and 1,068,530

Step by Step Solution

1. Step 1: Write the proportion equation
   684,718 : 1,068,530 = 1,068,530 : x
2. Step 2: Convert to fraction form
   684,718/1,068,530 = 1,068,530/x
3. Step 3: Cross multiply
   684,718x = 1,068,530 × 1,068,530
4. Step 4: Simplify right side
   684,718x = 1,141,756,360,900
5. Step 5: Solve for x
   x = 1,141,756,360,900/684,718
6. Step 6: Final answer
   x = 1,667,484.08