Finding the Third Proportional to 1,861.30 and 2,748.70

Step by Step Solution

1. Step 1: Write the proportion equation
   1,861.30 : 2,748.70 = 2,748.70 : x
2. Step 2: Convert to fraction form
   1,861.30/2,748.70 = 2,748.70/x
3. Step 3: Cross multiply
   1,861.30x = 2,748.70 × 2,748.70
4. Step 4: Simplify right side
   1,861.30x = 7,555,352.76
5. Step 5: Solve for x
   x = 7,555,352.76/1,861.30
6. Step 6: Final answer
   x = 4,059.18