Finding the Third Proportional to 407,976 and 674,233.50

Step by Step Solution

1. Step 1: Write the proportion equation
   407,976 : 674,233.50 = 674,233.50 : x
2. Step 2: Convert to fraction form
   407,976/674,233.50 = 674,233.50/x
3. Step 3: Cross multiply
   407,976x = 674,233.50 × 674,233.50
4. Step 4: Simplify right side
   407,976x = 454,590,812,522.25
5. Step 5: Solve for x
   x = 454,590,812,522.25/407,976
6. Step 6: Final answer
   x = 1,114,258.71