Finding the Third Proportional to 379,317 and 812,738.06

Step by Step Solution

1. Step 1: Write the proportion equation
   379,317 : 812,738.06 = 812,738.06 : x
2. Step 2: Convert to fraction form
   379,317/812,738.06 = 812,738.06/x
3. Step 3: Cross multiply
   379,317x = 812,738.06 × 812,738.06
4. Step 4: Simplify right side
   379,317x = 660,543,158,236.25
5. Step 5: Solve for x
   x = 660,543,158,236.25/379,317
6. Step 6: Final answer
   x = 1,741,401.41