Finding the Third Proportional to 694,156 and 1,407,628

Step by Step Solution

1. Step 1: Write the proportion equation
   694,156 : 1,407,628 = 1,407,628 : x
2. Step 2: Convert to fraction form
   694,156/1,407,628 = 1,407,628/x
3. Step 3: Cross multiply
   694,156x = 1,407,628 × 1,407,628
4. Step 4: Simplify right side
   694,156x = 1,981,416,586,384
5. Step 5: Solve for x
   x = 1,981,416,586,384/694,156
6. Step 6: Final answer
   x = 2,854,425.50