Finding the Third Proportional to 1,359 and 2,798.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,359 : 2,798.50 = 2,798.50 : x
2. Step 2: Convert to fraction form
   1,359/2,798.50 = 2,798.50/x
3. Step 3: Cross multiply
   1,359x = 2,798.50 × 2,798.50
4. Step 4: Simplify right side
   1,359x = 7,831,602.25
5. Step 5: Solve for x
   x = 7,831,602.25/1,359
6. Step 6: Final answer
   x = 5,762.77