Finding the Third Proportional to 807,816 and 1,254,308

Step by Step Solution

1. Step 1: Write the proportion equation
   807,816 : 1,254,308 = 1,254,308 : x
2. Step 2: Convert to fraction form
   807,816/1,254,308 = 1,254,308/x
3. Step 3: Cross multiply
   807,816x = 1,254,308 × 1,254,308
4. Step 4: Simplify right side
   807,816x = 1,573,288,558,864
5. Step 5: Solve for x
   x = 1,573,288,558,864/807,816
6. Step 6: Final answer
   x = 1,947,582.81