Finding the Third Proportional to 1,259.30 and 2,670.47

Step by Step Solution

1. Step 1: Write the proportion equation
   1,259.30 : 2,670.47 = 2,670.47 : x
2. Step 2: Convert to fraction form
   1,259.30/2,670.47 = 2,670.47/x
3. Step 3: Cross multiply
   1,259.30x = 2,670.47 × 2,670.47
4. Step 4: Simplify right side
   1,259.30x = 7,131,403.34
5. Step 5: Solve for x
   x = 7,131,403.34/1,259.30
6. Step 6: Final answer
   x = 5,663.00