Finding the Third Proportional to 612.75 and 1,300.88

Step by Step Solution

1. Step 1: Write the proportion equation
   612.75 : 1,300.88 = 1,300.88 : x
2. Step 2: Convert to fraction form
   612.75/1,300.88 = 1,300.88/x
3. Step 3: Cross multiply
   612.75x = 1,300.88 × 1,300.88
4. Step 4: Simplify right side
   612.75x = 1,692,275.77
5. Step 5: Solve for x
   x = 1,692,275.77/612.75
6. Step 6: Final answer
   x = 2,761.77