Finding the Third Proportional to 1,106 and 1,254.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,106 : 1,254.50 = 1,254.50 : x
2. Step 2: Convert to fraction form
   1,106/1,254.50 = 1,254.50/x
3. Step 3: Cross multiply
   1,106x = 1,254.50 × 1,254.50
4. Step 4: Simplify right side
   1,106x = 1,573,770.25
5. Step 5: Solve for x
   x = 1,573,770.25/1,106
6. Step 6: Final answer
   x = 1,422.94