Finding the Third Proportional to 620,626 and 948,990

Step by Step Solution

1. Step 1: Write the proportion equation
   620,626 : 948,990 = 948,990 : x
2. Step 2: Convert to fraction form
   620,626/948,990 = 948,990/x
3. Step 3: Cross multiply
   620,626x = 948,990 × 948,990
4. Step 4: Simplify right side
   620,626x = 900,582,020,100
5. Step 5: Solve for x
   x = 900,582,020,100/620,626
6. Step 6: Final answer
   x = 1,451,086.52