Finding the Third Proportional to 420,282 and 899,608.50

Step by Step Solution

1. Step 1: Write the proportion equation
   420,282 : 899,608.50 = 899,608.50 : x
2. Step 2: Convert to fraction form
   420,282/899,608.50 = 899,608.50/x
3. Step 3: Cross multiply
   420,282x = 899,608.50 × 899,608.50
4. Step 4: Simplify right side
   420,282x = 809,295,453,272.25
5. Step 5: Solve for x
   x = 809,295,453,272.25/420,282
6. Step 6: Final answer
   x = 1,925,601.03