Finding the Third Proportional to 670,815 and 1,003,563

Step by Step Solution

1. Step 1: Write the proportion equation
   670,815 : 1,003,563 = 1,003,563 : x
2. Step 2: Convert to fraction form
   670,815/1,003,563 = 1,003,563/x
3. Step 3: Cross multiply
   670,815x = 1,003,563 × 1,003,563
4. Step 4: Simplify right side
   670,815x = 1,007,138,694,969
5. Step 5: Solve for x
   x = 1,007,138,694,969/670,815
6. Step 6: Final answer
   x = 1,501,365.79