Finding the Third Proportional to 620,628 and 948,978

Step by Step Solution

1. Step 1: Write the proportion equation
   620,628 : 948,978 = 948,978 : x
2. Step 2: Convert to fraction form
   620,628/948,978 = 948,978/x
3. Step 3: Cross multiply
   620,628x = 948,978 × 948,978
4. Step 4: Simplify right side
   620,628x = 900,559,244,484
5. Step 5: Solve for x
   x = 900,559,244,484/620,628
6. Step 6: Final answer
   x = 1,451,045.14