Finding the Third Proportional to 646,673 and 978,954.50

Step by Step Solution

1. Step 1: Write the proportion equation
   646,673 : 978,954.50 = 978,954.50 : x
2. Step 2: Convert to fraction form
   646,673/978,954.50 = 978,954.50/x
3. Step 3: Cross multiply
   646,673x = 978,954.50 × 978,954.50
4. Step 4: Simplify right side
   646,673x = 958,351,913,070.25
5. Step 5: Solve for x
   x = 958,351,913,070.25/646,673
6. Step 6: Final answer
   x = 1,481,972.98