Finding the Third Proportional to 354,311.75 and 755,925.50

Step by Step Solution

1. Step 1: Write the proportion equation
   354,311.75 : 755,925.50 = 755,925.50 : x
2. Step 2: Convert to fraction form
   354,311.75/755,925.50 = 755,925.50/x
3. Step 3: Cross multiply
   354,311.75x = 755,925.50 × 755,925.50
4. Step 4: Simplify right side
   354,311.75x = 571,423,361,550.25
5. Step 5: Solve for x
   x = 571,423,361,550.25/354,311.75
6. Step 6: Final answer
   x = 1,612,770.00