Finding the Third Proportional to 651.56 and 1,426.69

Step by Step Solution

1. Step 1: Write the proportion equation
   651.56 : 1,426.69 = 1,426.69 : x
2. Step 2: Convert to fraction form
   651.56/1,426.69 = 1,426.69/x
3. Step 3: Cross multiply
   651.56x = 1,426.69 × 1,426.69
4. Step 4: Simplify right side
   651.56x = 2,035,437.22
5. Step 5: Solve for x
   x = 2,035,437.22/651.56
6. Step 6: Final answer
   x = 3,123.93