Finding the Third Proportional to 1,899.56 and 2,788.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,899.56 : 2,788.31 = 2,788.31 : x
2. Step 2: Convert to fraction form
   1,899.56/2,788.31 = 2,788.31/x
3. Step 3: Cross multiply
   1,899.56x = 2,788.31 × 2,788.31
4. Step 4: Simplify right side
   1,899.56x = 7,774,686.60
5. Step 5: Solve for x
   x = 7,774,686.60/1,899.56
6. Step 6: Final answer
   x = 4,092.88