Finding the Third Proportional to 938.75 and 1,222

Step by Step Solution

1. Step 1: Write the proportion equation
   938.75 : 1,222 = 1,222 : x
2. Step 2: Convert to fraction form
   938.75/1,222 = 1,222/x
3. Step 3: Cross multiply
   938.75x = 1,222 × 1,222
4. Step 4: Simplify right side
   938.75x = 1,493,284
5. Step 5: Solve for x
   x = 1,493,284/938.75
6. Step 6: Final answer
   x = 1,590.72