Finding the Third Proportional to 1,520.72 and 2,310.05

Step by Step Solution

1. Step 1: Write the proportion equation
   1,520.72 : 2,310.05 = 2,310.05 : x
2. Step 2: Convert to fraction form
   1,520.72/2,310.05 = 2,310.05/x
3. Step 3: Cross multiply
   1,520.72x = 2,310.05 × 2,310.05
4. Step 4: Simplify right side
   1,520.72x = 5,336,316.56
5. Step 5: Solve for x
   x = 5,336,316.56/1,520.72
6. Step 6: Final answer
   x = 3,509.08