Finding the Third Proportional to 630.56 and 1,012.31

Step by Step Solution

1. Step 1: Write the proportion equation
   630.56 : 1,012.31 = 1,012.31 : x
2. Step 2: Convert to fraction form
   630.56/1,012.31 = 1,012.31/x
3. Step 3: Cross multiply
   630.56x = 1,012.31 × 1,012.31
4. Step 4: Simplify right side
   630.56x = 1,024,776.60
5. Step 5: Solve for x
   x = 1,024,776.60/630.56
6. Step 6: Final answer
   x = 1,625.18