Finding the Third Proportional to 420,697.50 and 900,504

Step by Step Solution

1. Step 1: Write the proportion equation
   420,697.50 : 900,504 = 900,504 : x
2. Step 2: Convert to fraction form
   420,697.50/900,504 = 900,504/x
3. Step 3: Cross multiply
   420,697.50x = 900,504 × 900,504
4. Step 4: Simplify right side
   420,697.50x = 810,907,454,016
5. Step 5: Solve for x
   x = 810,907,454,016/420,697.50
6. Step 6: Final answer
   x = 1,927,530.96