Finding the Third Proportional to 900.94 and 1,338.47

Step by Step Solution

1. Step 1: Write the proportion equation
   900.94 : 1,338.47 = 1,338.47 : x
2. Step 2: Convert to fraction form
   900.94/1,338.47 = 1,338.47/x
3. Step 3: Cross multiply
   900.94x = 1,338.47 × 1,338.47
4. Step 4: Simplify right side
   900.94x = 1,791,498.59
5. Step 5: Solve for x
   x = 1,791,498.59/900.94
6. Step 6: Final answer
   x = 1,988.48