Finding the Third Proportional to 354,937.50 and 769,760

Step by Step Solution

1. Step 1: Write the proportion equation
   354,937.50 : 769,760 = 769,760 : x
2. Step 2: Convert to fraction form
   354,937.50/769,760 = 769,760/x
3. Step 3: Cross multiply
   354,937.50x = 769,760 × 769,760
4. Step 4: Simplify right side
   354,937.50x = 592,530,457,600
5. Step 5: Solve for x
   x = 592,530,457,600/354,937.50
6. Step 6: Final answer
   x = 1,669,393.79