Finding the Third Proportional to 620,640 and 949,012

Step by Step Solution

1. Step 1: Write the proportion equation
   620,640 : 949,012 = 949,012 : x
2. Step 2: Convert to fraction form
   620,640/949,012 = 949,012/x
3. Step 3: Cross multiply
   620,640x = 949,012 × 949,012
4. Step 4: Simplify right side
   620,640x = 900,623,776,144
5. Step 5: Solve for x
   x = 900,623,776,144/620,640
6. Step 6: Final answer
   x = 1,451,121.06