Finding the Third Proportional to 913.69 and 1,981.31

Step by Step Solution

1. Step 1: Write the proportion equation
   913.69 : 1,981.31 = 1,981.31 : x
2. Step 2: Convert to fraction form
   913.69/1,981.31 = 1,981.31/x
3. Step 3: Cross multiply
   913.69x = 1,981.31 × 1,981.31
4. Step 4: Simplify right side
   913.69x = 3,925,599.22
5. Step 5: Solve for x
   x = 3,925,599.22/913.69
6. Step 6: Final answer
   x = 4,296.44