Finding the Third Proportional to 345.52 and 751.78

Step by Step Solution

1. Step 1: Write the proportion equation
   345.52 : 751.78 = 751.78 : x
2. Step 2: Convert to fraction form
   345.52/751.78 = 751.78/x
3. Step 3: Cross multiply
   345.52x = 751.78 × 751.78
4. Step 4: Simplify right side
   345.52x = 565,175.05
5. Step 5: Solve for x
   x = 565,175.05/345.52
6. Step 6: Final answer
   x = 1,635.74