Finding the Third Proportional to 354,034.50 and 767,145

Step by Step Solution

1. Step 1: Write the proportion equation
   354,034.50 : 767,145 = 767,145 : x
2. Step 2: Convert to fraction form
   354,034.50/767,145 = 767,145/x
3. Step 3: Cross multiply
   354,034.50x = 767,145 × 767,145
4. Step 4: Simplify right side
   354,034.50x = 588,511,451,025
5. Step 5: Solve for x
   x = 588,511,451,025/354,034.50
6. Step 6: Final answer
   x = 1,662,299.72