Finding the Third Proportional to 1,291.50 and 1,938

Step by Step Solution

1. Step 1: Write the proportion equation
   1,291.50 : 1,938 = 1,938 : x
2. Step 2: Convert to fraction form
   1,291.50/1,938 = 1,938/x
3. Step 3: Cross multiply
   1,291.50x = 1,938 × 1,938
4. Step 4: Simplify right side
   1,291.50x = 3,755,844
5. Step 5: Solve for x
   x = 3,755,844/1,291.50
6. Step 6: Final answer
   x = 2,908.13