Finding the Third Proportional to 323,397.56 and 680,308.88

Step by Step Solution

1. Step 1: Write the proportion equation
   323,397.56 : 680,308.88 = 680,308.88 : x
2. Step 2: Convert to fraction form
   323,397.56/680,308.88 = 680,308.88/x
3. Step 3: Cross multiply
   323,397.56x = 680,308.88 × 680,308.88
4. Step 4: Simplify right side
   323,397.56x = 462,820,165,403.77
5. Step 5: Solve for x
   x = 462,820,165,403.77/323,397.56
6. Step 6: Final answer
   x = 1,431,118.29