Finding the Third Proportional to 1,372.50 and 2,788

Step by Step Solution

1. Step 1: Write the proportion equation
   1,372.50 : 2,788 = 2,788 : x
2. Step 2: Convert to fraction form
   1,372.50/2,788 = 2,788/x
3. Step 3: Cross multiply
   1,372.50x = 2,788 × 2,788
4. Step 4: Simplify right side
   1,372.50x = 7,772,944
5. Step 5: Solve for x
   x = 7,772,944/1,372.50
6. Step 6: Final answer
   x = 5,663.35