Finding the Third Proportional to 670.50 and 1,530.56

Step by Step Solution

1. Step 1: Write the proportion equation
   670.50 : 1,530.56 = 1,530.56 : x
2. Step 2: Convert to fraction form
   670.50/1,530.56 = 1,530.56/x
3. Step 3: Cross multiply
   670.50x = 1,530.56 × 1,530.56
4. Step 4: Simplify right side
   670.50x = 2,342,621.57
5. Step 5: Solve for x
   x = 2,342,621.57/670.50
6. Step 6: Final answer
   x = 3,493.84