Finding the Third Proportional to 1,272.38 and 2,705.63

Step by Step Solution

1. Step 1: Write the proportion equation
   1,272.38 : 2,705.63 = 2,705.63 : x
2. Step 2: Convert to fraction form
   1,272.38/2,705.63 = 2,705.63/x
3. Step 3: Cross multiply
   1,272.38x = 2,705.63 × 2,705.63
4. Step 4: Simplify right side
   1,272.38x = 7,320,406.64
5. Step 5: Solve for x
   x = 7,320,406.64/1,272.38
6. Step 6: Final answer
   x = 5,753.34