Finding the Third Proportional to 316,741.50 and 682,992

Step by Step Solution

1. Step 1: Write the proportion equation
   316,741.50 : 682,992 = 682,992 : x
2. Step 2: Convert to fraction form
   316,741.50/682,992 = 682,992/x
3. Step 3: Cross multiply
   316,741.50x = 682,992 × 682,992
4. Step 4: Simplify right side
   316,741.50x = 466,478,072,064
5. Step 5: Solve for x
   x = 466,478,072,064/316,741.50
6. Step 6: Final answer
   x = 1,472,740.62