Finding the Third Proportional to 354,685.50 and 755,379

Step by Step Solution

1. Step 1: Write the proportion equation
   354,685.50 : 755,379 = 755,379 : x
2. Step 2: Convert to fraction form
   354,685.50/755,379 = 755,379/x
3. Step 3: Cross multiply
   354,685.50x = 755,379 × 755,379
4. Step 4: Simplify right side
   354,685.50x = 570,597,433,641
5. Step 5: Solve for x
   x = 570,597,433,641/354,685.50
6. Step 6: Final answer
   x = 1,608,741.92