Finding the Third Proportional to 2,188.31 and 3,298.13

Step by Step Solution

1. Step 1: Write the proportion equation
   2,188.31 : 3,298.13 = 3,298.13 : x
2. Step 2: Convert to fraction form
   2,188.31/3,298.13 = 3,298.13/x
3. Step 3: Cross multiply
   2,188.31x = 3,298.13 × 3,298.13
4. Step 4: Simplify right side
   2,188.31x = 10,877,628.52
5. Step 5: Solve for x
   x = 10,877,628.52/2,188.31
6. Step 6: Final answer
   x = 4,970.78