Finding the Third Proportional to 850.50 and 1,300.13

Step by Step Solution

1. Step 1: Write the proportion equation
   850.50 : 1,300.13 = 1,300.13 : x
2. Step 2: Convert to fraction form
   850.50/1,300.13 = 1,300.13/x
3. Step 3: Cross multiply
   850.50x = 1,300.13 × 1,300.13
4. Step 4: Simplify right side
   850.50x = 1,690,325.02
5. Step 5: Solve for x
   x = 1,690,325.02/850.50
6. Step 6: Final answer
   x = 1,987.45