Finding the Third Proportional to 850.50 and 1,300.43

Step by Step Solution

1. Step 1: Write the proportion equation
   850.50 : 1,300.43 = 1,300.43 : x
2. Step 2: Convert to fraction form
   850.50/1,300.43 = 1,300.43/x
3. Step 3: Cross multiply
   850.50x = 1,300.43 × 1,300.43
4. Step 4: Simplify right side
   850.50x = 1,691,117.37
5. Step 5: Solve for x
   x = 1,691,117.37/850.50
6. Step 6: Final answer
   x = 1,988.38