Finding the Third Proportional to 431.50 and 1,060

Step by Step Solution

1. Step 1: Write the proportion equation
   431.50 : 1,060 = 1,060 : x
2. Step 2: Convert to fraction form
   431.50/1,060 = 1,060/x
3. Step 3: Cross multiply
   431.50x = 1,060 × 1,060
4. Step 4: Simplify right side
   431.50x = 1,123,600
5. Step 5: Solve for x
   x = 1,123,600/431.50
6. Step 6: Final answer
   x = 2,603.94